I often see my largest redbelly, which is about 7" in length, moving gravel with his lower jaw, like a bulldozer. (S)he's the only one who does this. The others are just 4-5" in size, and as far as I know reds are not yet sexually mature at that size, so I'm kinda puzzled why (s)he does that.
Does anyone know what's up with him/her? Is (s)he just horny (there's no territorial behaviour, though), or is there another explanation?
Another question: I don't know wheter the fish I'm talking about is a male or a female. Is anyone able to see it, judging from these pics?
Anyways, thanx in advance
Does anyone know what's up with him/her? Is (s)he just horny (there's no territorial behaviour, though), or is there another explanation?
Another question: I don't know wheter the fish I'm talking about is a male or a female. Is anyone able to see it, judging from these pics?



Anyways, thanx in advance
