Azoo Sponge Filter - is this right?

[Anne Dyari]

If you can't see it well in the picture, large bubbles are coming out of the top. They're very strongly displacing my duckweed and I wasn't expecting this at all.... is my tubing too small or did I just set it up wrong? (Azoo sponge filter came with literally no instructions as to how to set up, so I mostly relied on common sense and the air pump's instructions.

[aokashi]

:P yup, that's a sponge filter for you

[Bounce]

Attach a short section of airline tubing with an airstone to the other side of the bullseye (so that it is inside the tube inside the sponge) and you'll have small bubbles.

[aokashi]

or get an airflow control valve thing XD

[babystarz]

Yes I recommend an air control valve, they're really cheap!

[Anne Dyari]

Alright, will definitely look into an air control valve or into getting an airstone. :D

[Bounce]

Lots of info on sponge filters if you're interested:

http://www.americanaquariumproducts....iltration.html

Under the "Use: Further Sponge Filtration Information" heading, it tells how to reduce water agitation.

[goldfishyman]

If you use the gang valve to control your air flow I suggest to leave the one going into your tank fully open and open another slightly to vent to atmosphere. This will reduce wear on your air pump. I think the newer design of gang valves actually vent to atmosphere when you tighten the valve. I tried using one to do a drip for fry tanks and it seemed to leak when I tightened it down. Test to be sure which you have. I know my older ones did not leak. I do agree that putting an air stone in tube would be better because it would move water gentler.

[Thunderloon]

if you get a T and a valve you can run through the T and have the valve bleed air off the side.

the airstone you WANT for that sponge filter is a Lee's white one. They plug right onto the airline nib inside the bottom. no fiddling necessary.