Looks more like a lambchop rasbora to me, definitely not a tetra.
The behaviour you describe is perfectly normal and common.
I keep my harlequin rasboras at 24c.
Looks more like a lambchop rasbora to me, definitely not a tetra.
The behaviour you describe is perfectly normal and common.
I keep my harlequin rasboras at 24c.
Mine are at 25, it still amazes me how they turn a really strong red when there ready to breed.