dralarms
Aquarium Advice Addict
What exactly does a skimmer do and how does it work? I bought one by recommendation of my lfs and up until a few days ago it just seemed to be a hob filter, then I noticed the center foaming a small amount so I cranked up the air flow and I've got foaming bubbles 8O comming out of the center like mad. First is it supposed to do this? second, why did it take so long to start? Third if it is supposed to be doing this and everything is working normally then do I have the only skilter 250 that works :? :? . TIA