Who Killed My Fish?!

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Most popular comments
for Who Killed My Fish?!

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Comments on YouTube

Terry McDonald - 6 years ago

Is there a rusty wessel fish house vid in the works?

Ed's Fish - 6 years ago

Huge fan of these short format videos, good idea.

Phil O'Sofical - 6 years ago

Hi Cory. Great video. Love the message that we fish-keepers are responsible for the well being of our fish. Not always easy to accept but the only way we're going to improve our hobby!

FISHONAJ - 6 years ago

Is this clickbait...LOL...the title says WHO not WHAT!!! Went i went on vacation...oh god love her, my neighbor said she'd take care, but coming home and seeing the clown loaches and dead discus left me heartbroken. I did't even ask how she did in my tetra tank, i was only gone 10 days...now i have a boat and play with the fish i catch in it...sorry no more tanks...AJ Johnson III :( Happy New Year, i sub and really like your vids!!!

Jose Martinez - 6 years ago

I have a question about Metronidazole and praziquantel can I help with white poop

El Dal-Cl - 6 years ago

The last 20 years my only tank wipe (50% or more) has been from equipment/hardware failure. Most other solo deaths have been age or getting trapped in/under something.

Vue Lee - 6 years ago

since that happened and it has happened so often to other as well, (now i dont know if this is true) but, asian myth speaks of those animals weather its a bird, fish, dog or cat, on that day, that it died, it gave its life up for you. kinda like a thank you. so dont feel so bad.

Paul . Alexeyenko - 6 years ago

S a l t
i feel sad

colinbarsby - 6 years ago

Some words of wisdom here.

10. comment for Who Killed My Fish?!

DagDaWildDog - 6 years ago

My cichlid pair attacked my tetra because they had babies

FamfritFW - 6 years ago

Love the directing in this video, like it's one of those crime documentaries. Love the work guys, Cory. Thanks for making such awesome content.

Jeremy Isack - 6 years ago

Please make an informational video on betta sorority’s i have no idea what i’m doing

David's Fish Tanks - 6 years ago

True man great video

George fish tank - 6 years ago

Thank u for that video I look forward to all your videos thank u keep up the good work

Haley H - 6 years ago

Humans are to blame for EVERYTHING

MDStorm123 - 6 years ago

Sometimes a fish died because it was old...

Makye Smith - 6 years ago

Is sand substrate bad for fish?

Dragon Killer - 6 years ago

~~3 minute video~~

kawasaki000000000000 - 6 years ago

I have just recently put ottocats in my 220 with 14 rosline 10 clown loaches 2 plecos 2 angles and a cat fish and have found some dead not sure 100 percent what did it possibly thing the cat fish but cannot conferm

20. comment for Who Killed My Fish?!

The #1 Kill Joy - 6 years ago

I recently had one of my siamese algae eaters just disappear on me and im still confused because i went through my tank for about an hour trying to at least find the body an i got nothing, the only explanation i could think of was the poor guy got sucked out during a water change, but ive had my tetra swim into the siphon and happily sit there whilst its draining so i thought that would be unlikely. Bottom line - i don't know what the hell happened. :(

Tony Zhang - 6 years ago

New camera???

Rien Reijneveld - 6 years ago

This clickbait tho

KyloMeekthos aka FilthyCasual - 6 years ago

Yea i just Loss $50 bucks on 12 rummy nose i got last week. now down to 3. still trying to figure out why. my best guess is that them living with my super thriving guppy colony was to much activity and stress for them. no other casualties and the tank is running normal. i could have froze the bodies and brought them back to the LFS but i kinda already realized what cory was saying. Something I Did Killed Them, so it's a learning experience ill bite the bullet on.

Aquarium Co-Op - 6 years ago

I would always make a trip to the store and make sure their rummy nose tetras are doing well. If they have a bunch left thriving, then you know it was you. If they are completely out or they look sick there, you know it was probably on them and could mention it.

I234 Internet Street - 6 years ago

Hi team! Earlier this fall I had some balloon and regular molly fry born, and they are getting to be about an inch long. I’ve had the intentions to give them to a fish store as they are starting to outgrow their 30 gal rapidly, but I wasn’t sure who would even take them. I instantly thought of you guys, being my personal favorite fish store, and wondered if you would take them, if there’s a limit to how many, minimum size requirements, etc. I have probably 25-40, and I don’t care about selling them for profit, I just want them to go to good homes

DCC - 6 years ago

dude love the new quality! and awesome topic video

Han-Z Waligurke - 6 years ago

well said. the real deal is though, that most likely ornamental fish will pay our learning process with their lifes. so we shouldn't experiment too much or at least share the results of our mistakes to prevent others from doing them (without getting blamed ofc).

ShortNanxious - 6 years ago

The only fish I've killed, were my own, unfortunately! It's always a learning process, wether it's a disease, virus, genetics, bad food, bad equipment, medications, bad water quality or not keeping track of water changes. I'm absolutely guilty of all of the above... buying strains and not understanding their delicate genetics, that lesson was horrible, lost alot of fish but the ones that made it are obviously the ones worth breeding so good and bad together... yin and yang

Scott Preece - 6 years ago

So you're saying we're all murderer's. Thanks

Han-Z Waligurke - 6 years ago

if you really remember the situations of yout dying fish, it will come down to this. fish dies of aggression of other fish (your fault), fish died of sickness you didn't cured (your fault), fish died of malnutrition (yout fault), fish died of wrong water parameters/temperature etc. (your fault). what is left a fish could die of?

Han-Z Waligurke - 6 years ago

you can't take the truth?

Aravis Wilder - 6 years ago

Could you do a top 10 Pea Puffer tank mates video, please?

30. comment for Who Killed My Fish?!

Tropical Fish Success - 6 years ago

Video quality is excellent! Great editing too.

Savanna Morrow - 6 years ago

I had to explain to my mother that if she finds a dead fish in her tank that seems to have been eaten, it doesn't mean other fish killed it, it means they scavenged it and ate it afterward. it's possible another fish killed it, but not likely with the fish she keeps. I haven't had a fish death in almost a year, since I stopped buying fish from a certain place. They rarely survived quarantine. But ever since I bought from a different place, everything is fine. If a fish dies I investigate the environment and test water first and work from there.

faith jackson - 6 years ago

Cory...Aquarium Co-Op... have a question? Can I order the Repashy grub pie in Minnesota freezing weather? Will it be okay and go bad if frozen? I live in rural area and gets shipped by sure post sometimes.

faith jackson - 6 years ago

Thanks for fast response ,I will be ordering again later today! Thanks Cory!

Aquarium Co-Op - 6 years ago

You can freeze it no problem.

David Laws - 6 years ago

Interesting and useful topic. Yes, we all should be learning something new or technique in this hobby, no matter how long you have been at it? Right? This what most of us do, it's our hobby, not business. So, in my view yes, we killed the fish nearly 100% of the time. This is either directly or indirectly. There was some discussion on the channel claiming it was okay to take fish from the wild. So, let's talk about that a bit. Does everyone understand the stress on a fish associated with transporting a fish from its large natural environment, to one this is much smaller, closed loop we try to mimic on a meniscal scale. Water quality, Temp and stocking levels. We change that in our hobby. A responsible aquarist tries to mimic its natural environment at much as we can. We try to get better at this everyday? I do anyway.The fact is, we will never be able to 100% duplicate its natural environment, which often will lead to fishes demise. I argue that aquarists who most closely achieve natural environment, will "kill" much less fish. We can discuss and argue getting our fish from the wild is sustainable or not all day long. For me it's B.S. But, we all know it will never stop when wild fish are cheaper. If a tank raised fish was readily available and cheaper, why would anyone buy from the wild? To help local economy? I don't think so. It's just our way to rationalize and buying wild caught fish. Afterall, seems to me there would be much less stress on a fish raised in a tank to our fish tank.

So, in my view, the real focus on our hobby ought to be to continue to educate aquarists on all levels of experience to minimize fish loss due to our inability to duplicate Mother Nature 100%. Cory seems to understand this and it's not all about maximizing profit for him.

Omid Saranj - 6 years ago

I don’t get the timer

TheLukenator007 - Minecraft - 6 years ago

the filter killed my fish it cot sucked in

Andrew Piorkowski - 6 years ago

Worth stating that fish have finite lifespans. Most livebearer species pass by their 4th birthday. #TMYK

AJ Naps77 - 6 years ago

Awesome video, a quick tutorial On the most asked question. looking good getting ready for the jungle.

Lyle Chipperson - 6 years ago

Cory are long sleeve button ups out of the question?

Lyle Chipperson - 6 years ago

It all makes sense now. duh on me.

Aquarium Co-Op - 6 years ago

Are you asking if I wear them? Yeah when you own a business that has its hands under water half the day, it’s just a problem

Hdz Aquatics - 6 years ago

Hey Cory, figured out that Mollies live more than guppies. Whould you know why. I have a ph of 7 and every time I get them they either die in a week or get bloated. I feed my tanks once every other day.

Andrew Llewellyn - 6 years ago

Double check the kh in the water, I find guppies quite sturdy if you keep the kh between 15dkh and 20dkh. This can be checked with a test kit and corrected using bicarbonate soda. The mollies also love this hard water environment. If they are bloating try using a wormer, flubendozole or prazaquantel.

Aamir Chinioti - 6 years ago

Very knowledgeable person...learn a lot from you...best of luck bruv..from london uk....waiting for future videos....

Catherine Kennedy - 6 years ago

Had me worried for a second! Geeezzzz Cory! Good information!

Manuel T - 6 years ago

Great Peter McKinnon affect video,

DaggerOne - 6 years ago

I haven't watched your vids in a little while. Glad to see there is no fuzz on the face! he Sadness on the fish. :(

Alex Tchieng - 6 years ago

Petsmart put 10 guaramis in a tank less than 10 g

Scott Mitchell - 6 years ago

If I were making these Thursday videos I wouldn't try to put a 3 minute cap on it. It seems kinda pointless and makes the video seem rushed. Still an amazing video as always Cory! This is my favorite channel on YouTube I'm certainly not trying to beat down on it. Just giving some constructive criticism, I know it wasn't asked for but I want to voice my opinion.

Yorky One - 6 years ago

Research your fish & its intended environment before you buy it but then again...... philosophically speaking if a fish dies but no one sees it die is it really dead ?

Award Aquarium - 6 years ago

The only time I don't blame myself is if new fish don't survive the quarantine process. Other than that I try and figure out what I did wrong.

FaLLenStormyGod - 6 years ago

i did buy last 3 days ago 16 rummy nose, 10 neon tetras 3 kooli louches and 10 cerebes i think its called, 5 rum and 3 neon already died, when i put them in the tank i already saw 4 or 5 rum have fast breathing and only stayed in one spot and i saw 1 of my angels almost eatin one of the neons and chasing them, i moved the angels when i was observing them for 30mins. the koolis are under the rock and doesnt come out even if i feed the tank, maybe i overfed the new fishes bec those fish was from the shop and they only eat twice a day with little portions, i hope no one die tomorrow

charles griffin - 6 years ago

FaLLenStormyGod is your tank cycled? Also adding all those fish will completely shock your bacteria system which is even worst if your tank is brand new and not cycled. Knowing that I learned not to feed my fish for a day or two. This lets my bacteria catch up and also I find that it stresses me and my fish when I try to get them to eat the first day I get them

Aesyir - 6 years ago

Hey Corey what do you think of fishless cycling? Im trying to setup a tank and having some trouble with it (its probably due to user error)

Heavy Metal Lion - 6 years ago

i also used fish flakes instead of pure ammonia. cycle completed in about 3 weeks. i also had live plants in there from another tank, so that may have helped some. oh, i also used seachem stability every day as well.
basically just get it set up and leave it alone except for feeding it (and adding bacteria if you choose to do so).

littlepiggydog on IG - 6 years ago

Aesyir use fish food instead of ammonia liquid, use the same amount of food per day as you would feed the fish that would be in there

50. comment for Who Killed My Fish?!

Lumpydog - 6 years ago

Nice talk, I couldn't agree more. Thanks for sharing. Cheers

V. Stag - 6 years ago

Awesome video Great info Thanks for sharing #FishFam #NJAE18

Robert P. - 6 years ago

A very good subject. Considering that I walked down to feed the fish room and my male gourami is dead. He was just spawning yesterday. Lest he died a happy fish. Still it shocked the heck out of me. Swear I even muttered those words "who killed my fish?"

The Enderguy - 6 years ago

Galway Girl - 6 years ago

I'm pissed from the fact that i can't get Gbr,ebr and bolivian rams. I really want a pair

dan le - 6 years ago

it drank too much

Dali Vigil - 6 years ago

Could hear you talk for hours 3 minutes is such a tease

paulus matusevicus - 6 years ago

No 1 prevention of fish death: water changes weekly (30 to 50 %). Voila. Problem solved.

TheGolemHunter - 6 years ago

paulus matusevicus Yep, even more frequent water changes. I did daily water changes for 4+ months in my 2.5 gallon to hep out with my bettas fin rot and preventing ammonia spikes while cycling the tank. That tail/fin still looks the same but atleast my betta is a healthy boy lol.

Xtreme Pro Exotics - 6 years ago

And will you get into saltwater PLEASE!!!!?? I can't be the only one going broke

Xtreme Pro Exotics - 6 years ago

I bought 10 baby albino Bristlenose Plecostomus and got 11, I put them in a 29 too fast and didn't QT as long as I should have so they introduced a fungus of some sort(wasn't visible when I introduced them specimens to the established planted 29) so the corydoras got the fungus so I have to treat for a week with pimafix and it solved everything, completely my fault

Cris Eloisa - 6 years ago

I think the slow-mo cutaways would work better if they were cutaways to aquariums with a decreased slow-mo speed as opposed to items around the room, because that would still provide more visual interest while keeping us focused on the topic! Love the video.

iRlazyGoat - 6 years ago

Frank did it!

AmyCummingsIrishDanceMom - 6 years ago

iRlazyGoat awe Frank is to sweet to do it, now beans on the other hand, i don't trust that guy(

pia a - 6 years ago

So funny!!!!

Jason Arencibia - 6 years ago

Frank and Beans together, they are a team! lol

Candi Overhuls - 6 years ago

Thank you for the video.

Adam Till from Arctic Lights Aquatics - 6 years ago

Water parameters are perfect!

BC Fishroom - 6 years ago

great vid!

The Professional Memest - 6 years ago

I’m very worried:
My zebra danios always used to eat goldfish flakes for the past month, so I tried getting them tropical flakes.
Their not eating those.
Now their not eating the goldfish food either!

I’m considering trying to feed them brine shrimp.

The Professional Memest - 6 years ago

Uhohhotdog Gaming - 6 years ago

The Professional Memest fasting means not feeding

The Professional Memest - 6 years ago

Dyne Dragon what’s that

Dyne Dragon - 6 years ago

The Professional Memest I would try fasting them for a day or two.

Susan for SLC Aquatics - 6 years ago

I like the three minute thursdays even tho Cory never does three minutes. Therefore I would ditch the on screen countdown and the fade awaits from the main talent were distracting for me. Thanks for trying new things tho

Zip Lynx - 6 years ago

totally agree

jane tanked - 6 years ago

This was the first video where I thought, wow, what a beautiful picture. You're so pixelated!

rebecca durbin - 6 years ago

i get it. consequences for actions by lack of education. like my lack is i ordered gravel from petco. didnt know it wasnt fine gravel. should have read. also, yesterday the molly and frog passed away. fish died from ich and frog well was my fault i put it in a quaranteen tank that had suction cup filter. it got smashed from the filter. was my fault i should have known it would happen. suction cups dont hang on. well i hurridly took the fish and frog out without my kids seeing. they too young to understand death. all we have left is 2 tetras. i took off the suction cups on the filter.

Aquariums Anonymous - 6 years ago

great video, I often see people grasping at straws to find answers to their fish dilemmas as well and they (myself included at one point) often look towards the water supply or a mystery disease when the solution can typically be found in way more simplistic ways. Thank you for reminding us that mistakes happen and keep the 3 minute Thursdays coming!

Gavin Eberra - 6 years ago

I have a question and YouTube hasn’t answered it wet . What fish can live with a Betta that lives in a one gallon tank

Albino Catfish17 - 6 years ago

mrmas That’s what I’m gonna do

mrmas - 6 years ago

I keep a betta with tetras and rasboras in a 10 gal. Most I've kept do great with small community fish, but you could end up with an aggro one.

Albino Catfish17 - 6 years ago

Nothing

Cade - 6 years ago

Gavin Eberra I wouldn't put anything in a one gallon with a Betta.

Iryniepoo - 6 years ago

Whats really sad is my oldest cory died this morning and now I'm watching this. The shoal will never be the same. RIP.

tortoisetom1 - 6 years ago

Tangerines looked great!

Goober tuber - 6 years ago

Reminds me of the problem I have with boesmani rainbows, I tried to add 6 of them 5 years ago but only 2 survived so a couple of times I have added another 4 and every time those 4 new fish die yet I still have 2 that are thriving and 5 years old, a real head scratcher as to why that has happened.

bob sun - 6 years ago

Amen it’s use as fish kippers

jayman8543 - 6 years ago

Great advice.

Dorkula - 6 years ago

I see what you did there.

209Control - 6 years ago

Dorkula for a brief second I thought you might of had a hand in killing corys fish

LittleLargeMouth - 6 years ago

I got scared reading the title

Roger Dedham - 6 years ago

I havnt had a fish loss in over a year. Knock on wood

Andrew Givens - 6 years ago

That's not really that long lol.

Stormy Mist - 6 years ago

Roger Dedham don't jinks it

Jake - 6 years ago

slowmo cutaways were a little unnecessary.

EZ's Aquarium - 6 years ago

Might be experimenting. I do agree...it didn't fit with the video.

Jason Arencibia - 6 years ago

yeah, they didn't tie in with any moment of drama, they didn't highlight a point in the topic.

Like when he said you added 5 tetras and the 2 gouramis stayed together, some slowmo of 2 gouramis in the corner of a tank, would at least highlight a point. not the bowl of fruit.

Fish&Plants - 6 years ago

Lol...yeah,a little to 'artsy fartsy'!

Adriefully - 6 years ago

Cory! We need to up your time to about 5 minutes instead of 3 minutes. xD this is great information for people! I see "What killed my fish?!" on FB all the time.

Joe's Fish Room - 6 years ago

Great video . Spot on. Know one ever likes to come to that reality of "I killed my fish" but its in fact reality. Live and learn..............Now off to my fish room to see who killed my fish ( no way it was me ) lol Happy holidays all

SC Aquatics - 6 years ago

Man, for a second I thought someone killed like some of your fish room or the 800g. Glad this wasn't the case. Good vid.

SC Aquatics - 6 years ago

Ten Dragons I dont think it was clickbait, the title was straight forward. We just thought worst case scenario is all.

Ten Dragons - 6 years ago

Me too. I don't know why with 103k subscribers Cory feels the need to click bait !?

Bert Shackleford - 6 years ago

Ditto. Thought some Antifa or PETA may have sabotaged his store. You do live in Washington and Oregon is the capital for those groups so please be careful. Glad that I was wrong for once.

Keep up the good work my friends.

Golden Gray - 6 years ago

SC Aquatics I thought that too!! I was worried for a second haha

Oscar Hernandez - 6 years ago

I have a 5 gallon cycled tank and when I ordered my betta online he developed fin rot. I put him in a 1gallon tank heated with aquarium salt for a week or so. When I put him back in his tank his fin rot is still progressing. Is there anything I can do.