thankyou so much for all your help i have it all running well and they are thriving, another question i do have is about my reservoir, at first it just smelt like a normal fish tank or a bath but the other day i decided to put the lid on it and now when i took the lid off it smells, i have 2 air stones in it so it is aerated and the lid has no holes it it except for where it was a little lifted on one side just where the
pump wires come out, did i do a bad thing by virtualy sealing it shut?