I'm not too sure but I know they do lay on their sides during the day but my Knife fish died just the other day after laying on it's side an awful lot, I think it may have been the whitespot medication i introduced to the tank. It may be the same with the salt you added.
Hello all, this is my first post. I have recently introduced a Black Ghost Knife Fish to my tank and was wondering whether it's behaviour is normal: It lays on the gravel on it's side quite alot. Occasionally moving to another spot. Is this normal or is there something wrong? The PH is fine the...