My loaches and other fish dying suddenly (with tank pics)

  • We are currently upgrading MFK. thanks! -neo
beantickler;2051803; said:
What was the nitrate level? How many weeks did you slack? 50% was WAY too much if the nitrates were that high... That will shock a fish going from dirty 100ppm down to 50ppm in a matter of minutes... Killing a common plec is no easy task...lol
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yeah thats what i thought... with pleco dying i was stressing cos they have always been quite tough... yeah teh nitrate was at 100ppm and then when i did the 50% water change i think it may have shocked the pleco... but that was yesterday and when i woke up this morning so far so good, no more fish had died... i am just annoyed with one of my large silver shark and clown loach died.... i wanted to move them into my 8footer so they get even bigger.... yeah i just upped the temp a little to now sitting just under 27 degrees..... hopefully that will be fine.....

cheers

Eric
 
100ppm holy crap, that explains it.
 
Sorry to hear your fish died, at least you know why.

Ironic how your username and title disagree :-D
 
I've seen many fish at a particular LFS who's nitrates are sky high (over 100 ppm)-and all those fish have cloudy eyes also. When I get them home in low nitrate water their eyes clear up immediantly. Long term high nitrates (how high is "a little high" to you?) causes many problems and in the "over 100 ppm" nitrate water can cause death.
Edit: Oops. Just saw the posts at the end and I see that was the problem.
I'm sorry you lost them.
 
yeah i know what you mean... my water quality is usually pretty good.. kept under 20ppm for nitrate...but just lately have been extremely flat out with work so just keep forgetting when i changed the water.... and then disaster strucks.... if i didn't have the 3 canisters running on it... i think it wouldnt have lasted that long.... i think the nitrate was more 80 ppm before the water change can't ever distinguish between teh colours.....

cheers

Eric
 
Arachnar;2051913; said:
Sometimes that stable tank can be the exact problem. In nature the environment is dynamic in the aquarium it is often more static. When you have a tank, and keep the water temp constant, water chemistry, suddenly a bacteria that fits right in suddenly has all the right conditions to thrive and out competes other organisms. It becomes pathogenic and starts attacking fish, that's what happened with mycobacterium for me where it thrived in the high temps and killed quite a few fish.

Double click on health and diseases
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a good point!

Solved by UV filtration. Maybe look into that...
 
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