If I have a 28 inch airstone for my tank, what kind of pump should I get?

Question

I just want to know what size because I got one from topfin that was an xp 30. and it didnt work. I have a 29 gallon tank, so what type of pump should i consider thats powerful enough to push bubbles out of the bubble curtain

Answer 1

The size of the air pump you need is determined by two things: How much air you want it to push out and how deep the water is at the outlet. These two thing are called volume and head pressure. Also consider this, the deeper the water, the less volume. You will want to read on the boxes or enclosed paper work what the volume is at the depth of your tank and look for several cubic feet per second to make a good amount of bubbles for an airstone that long. I would also suggest you get a pump that will produce at least some airflow at a depth around double that of your tank. This will mean the pump will not wear out as quickly.

MM

Answer 2

the strongest one
get a two outlet one because they are meant for pushing out more air