Splitting or melting?

[psw3468]

Is this splitting or something more sinister?

 

[PPBlimpy]

probably pooping.

 

[vetteguy53081]

Is this splitting or something more sinister?

Likely adjustment to lighting or flow especially if lights just came on. They will swell prior to a split and shrivel if there is insufficient light intensity

 

[D-Nak]

Looks like a BTA just being a BTA. Could be as simple as it flushing a portion of its oral disk.

 

[psw3468]

Thanks all, my lady at home sent me picture all concerned. Gonna tell her its just relieving itself.