Update: Diatom outbreak! Does it mean it's the ending stage of the cycling?
Add a couple snails. I haven't test for any number, but They all alive--->good!
Question: I turn on the skimmer the first time today. I can't stop the overflow no matter what setting I am on. The sump level right now is 10". The recommended level for this skimmer is 9~11".
Anyone know why? I suspect the glue/putty/cement/silicon... i uses on the scape make it gone crazy.