Karen B. Posted August 14, 2021 Share Posted August 14, 2021 I have a community tank. Population : 1 honey gourami, 10 chili rasbora, 7 false julii cory, 5 otocinclus and 4 nerita snails. Cycled, planted, temp about 75, Ph 6.6 Kh 1 (drop) / 0(aquarium test strip) Gh 9 / 300 0/0/10 WC + gravel siphon every week or 2 weeks depending. one of my corydoras is always breathing rapidly. And rarely hangs with the others. He mostly stays still and breath rapidly. No one bullies him, except sometimes other cory bumps into him. I rarely see him eating and I find his color turning a bit yellow? His barbel are also damaged (shorter) then my other coryd. I know my ph is a bit low and so is my kh, I bought Seachem alkaline buffer to correct that. I have a sponge filter. None of my other fish have his behavior- in fact my other cory breed like rabbits. Any idea of what it could be? Link to comment Share on other sites More sharing options...
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