whiskers disapearing and stresses me out that they will get food

never grew back

When my cory lost his whiskers, they never grew back. I read that this indicates poor water quality and better water and better diet can help. More worms and live food, less nitrates.
 
Yeah, I think that it generally indicates a lack in the diiet or else high nitrates in the water. Start doing some big water changes and hopefully that will help. My cories are kept with regular aquarium gravel and it doesn't hurt their barbs so unless you have really sharp gravel or sand I doubt they would just wear them off.
 
one of my spotted cories lost the barbels on one side only, they just slowly got smaller and smaller and then were no more, the thing is i have very smooth small gravel, and all my levels are ok, am o nitrites 0 nitrates 40 (its a planted tank) I could not figure it out, all the other cories barbels are ok, then 2 weeks later a different spotted cory turned completely black, but no other bad signs, he kept eating and swimming normally. He stayed like that for a week or two then came back to normal and has been fine ever since......it baffled me :confused:

found pictures

here's its normal colors:
cory.jpg


Heres when it turned black (its blurry but you can still see the color)
cory1.jpg
 
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40ppm nitrate is too high, especially planted. 10 ppm would be better, 15 okay IME.

Cory barbels problems seem to be associated with undermaintained substrates, especially excessive organics.
 
i've read that they need fine gravel with no sharp edges & that is what wears them off. could be water quality too, or maybe too high of a ph?
 
to fix this:

Start feeding them live food and they will (with good maintanance) grow back...
 
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