hey im pretty new to all this and now realise that my 120 litre tank that has been running just over 4 weeksis overstocked. so far have lost 2 neons and 1 black molly (bad case of pop eye) on sunday bought 5 corydoras sterbai yesterday noticed 1 had turned very pale and today found it dead. looks like i might lose another one though, since putting in tank they swim constantly up and down and across the glass they hardly stop and seems quite frantic. i have also just noticed a few white spots on one of my panda garras does anyone know if i should just treat as whitespot. please please help