ATI sponge filter questions...

[midasman714]

just purchased 2 ATI sponge filters rated for 80 & 120 Gallons.

i'm using an air pump to drive it. the airline is connected to the top (cap) portion of the sponge. this is what the directions say.

however, I feel this does not create enough movement since the airline sits on top of the sponge. would it be better for me to place the sponge filter on top of a circular airstone? i'm thinking this would allow more water to move through the sponge, and provide adequate aeration for cultivating bacteria.

 

[midasman714]

bump

 

[deeda]

Does this filter use an airstone?

 

[Pharaoh]

I have ran them both ways. First with an additional line and an airstone and then without an airstone. To be honest, I never really noticed a difference. They have more flow than you think. All of those air bubbles are generating current as it flows upwards.

 

[gomezladdams]

At least run a line to the bottom of the sponge base.Ive found if you just hook the airline to the top,mulm builds up in the base.

 

[midasman714]

thanks everyone.

currently running one as is w/ top connection (i will extend the airline so it reaches the bottom to get some movement down there).

i'm powering the other sponge with a powerhead.