What fish would you consider the hardest to keep alive?

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Everyone seems to have a fish that can't keep. For me it's Green Terrors. They always seem to get the white stringy poo's and waste away. Two close friends of mine have had the same issue. Never could figure out why.
 
I fail miserably at raising Clown Loaches. Everything goes well for months and then the ich fairy comes and takes them all away :(.

I've been responsible for the death of over 15 clown loaches in my 10 years of fish keeping. As much as I love their traits I just can't put them through my crappy care.
 
Any kind of barb! Every one I have ever had has ended up taking the plunge. I've gone through lemon barbs, cherry barbs, flagtails, and even when I was younger a tiger barb.
 
Oddly enough...guppies. Any guppy I ever tried to keep(non feeder) would die within weeks.

Edit: on the flip side, I tore down my kiddie pool(last fall) and a week later, I was messing with it outside and found 3 rosey reds still alive that I missed(in tiny amounts of water).
 
African Butterfly fish. They always die on me as a kid so I gave up.
 
Adhlc;4068333; said:
Everyone seems to have a fish that can't keep. For me it's Green Terrors. They always seem to get the white stringy poo's and waste away. Two close friends of mine have had the same issue. Never could figure out why.

:barf:

White stringy poop is often the sign of internal parasites. Seek out the proper medication.
 
Fish-FAQs;4069099; said:
:barf:

White stringy poop is often the sign of internal parasites. Seek out the proper medication.

True, but with gt's sometimes no medication will work. I have also experienced this "mystery disease". It comes out of nowhere, and lasts a couple weeks. There is nothing you can really do, but try to get it to eat veggies, which most of the time won't happen, because they stop eating period. Do a search on it. You will see that it's more than just a coincidence how many people have this problem.
 
Hmm, all these fish listed seem relatively easy if given proper attention to details.

Mandarin Dragonets are very easy to keep and very hardy provided they are not starved. Tank should be well established with lots of live rock. They eat copepods that should naturally have high numbers in your tank. The live copepods that are $20 a bottle are not sufficient to feed any dragonet...

On the flip side; ORA, a company that aquacultures fish and corals, is now tank-breeding mandarins and this summer we should see some mandarins that have been trained to accept pellets (part of this is to have them all eating pellets). Probably will cost an arm and a leg though.

Pipefish, certain saltwater angels, and the more exotic butterfly fishes are amongst the hardest I would venture.

If you wanna really open a can of worms look into the Moorish Idols.. ;)
 
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