I use the same sponge filters (ATI) and I am waiting for my order from Kens fish. I ordered a bunch of replacement sponges since I had my Marlboro female sick (white poop) and always hiding, the meds killed the cycle twice so those sponges went to the garbage. Finely after 2 1/2 weeks she was ready to join her partner. So far eating and doing well.
ALITA AL-15A Linear Air Pump and I have a noisy backup incase of failure. This thing will drive many sponges I had 12 plus my water barrels and BB hatchery at one point and I probably could have added more. Worth every penny and super quiet, picked it up at Kens Fish.
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