My friend was setting up her tank and she used this substrate (for a planted tank) 
however,she added water to the tank and left it for few weeks without doing anything about it,no filter running ,no plants whatsoever! So now there are small larvae sort of things in the tank. and few small white worms sorta things!!!!!!! (freaking gross)..... Could anybody possibly tell me what to do regarding this! please


however,she added water to the tank and left it for few weeks without doing anything about it,no filter running ,no plants whatsoever! So now there are small larvae sort of things in the tank. and few small white worms sorta things!!!!!!! (freaking gross)..... Could anybody possibly tell me what to do regarding this! please
