Have you tried cleaning out the entire filter in old aquarium water there may be stuck waste or debris it’s happened to me beforeHello my aqua clear 70 was running fine but I just switched out some new media I wanted to put in there and now it’s just humming and not pushing in water please help ( only 3 months old)
Ok update when you get back in the tank and tell if there’s any more problemsok will try
still just hummingOk update when you get back in the tank and tell if there’s any more problems
Do you know how to prime them?still just humming