hi i just had my tank lights off bout 2130hrs and while watchin tv i took a glimspe of my tank ........and realised theres 3 Blue/greenish spotted black thin worm or maybe eel like shape creature of 3 diff size swimmin or wriggling around my tank! i took a torch and try to identify them but dont know what is it??? it wriggle very fast and swims around up & down the tank ....finally the other 2 manage to get behind those rocks and disappear while the other one swim through the overflow system which i think i couldnt see it anymore!
what can it be? harmful?
size 4cm to 6cm long
and i dont see the fish chasin or try to eat them!
thanks
what can it be? harmful?
size 4cm to 6cm long
and i dont see the fish chasin or try to eat them!
thanks