[Aquarium glass lid]

@Tanked try turning down the air flow in your air stone or sponge filter. I find the bubbles splash the glass

[Splitting an air pump]

Hi all, 

I am starting a fish rack with 4 10 gallon tanks. I will be running 4 sponge filters but I'd prefer to run one air pump. Was looking at the ap50 or 100 but am unsure if there is enough pressure to run 4. Anyone have experience with this? Thank you in advance.

Chris