Corydoras4Ever
Aquarium Advice Apprentice
I have noticed this before, but sometimes one of my corys quickly rubs itself against the gravel. It is a very quick, swift movement in which it throws itself on its side and then back up again.
At first, I thought that it might be caused by high levels of nitrate, but regular checking seems to dismiss that notion. My water levels are fine, unless it is something that I am not testing for?
I check for amonia, nitrite, nitrate, pH, gH.
I have seen it in the past with my corys too and it never lead to their death or anything bad like that. I still wonder why they do it. Seems like an itch to me and I don't want their slimey coat to deteriorate.
At first, I thought that it might be caused by high levels of nitrate, but regular checking seems to dismiss that notion. My water levels are fine, unless it is something that I am not testing for?
I check for amonia, nitrite, nitrate, pH, gH.
I have seen it in the past with my corys too and it never lead to their death or anything bad like that. I still wonder why they do it. Seems like an itch to me and I don't want their slimey coat to deteriorate.