Internal Filter as CO2 diffuser?

D

DIYMatt

AC Members
Oct 8, 2001
215
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0
Minneapolis, MN
Hello all! After seeing so many high pressure CO2 enriched tanks, I think I am ready to make the jump to high pressure CO2. Being a DIYer at heart I am peicing together a budget system to feed multiple tanks. My question is about the diffuser. On my main dispaly tank I fed DIY CO2 into the intake on one of my canisters. I plan to do this with the canned gas also. I originally planned on doing that to the other two tanks also. But, I think they a need a little more water circulation than a single canister provdes. So, I looked at building my own reactors. With powerhead and all the parts the cost is at least $20 each. So, I was looking some internal filters like the Duettos and the Eheims(yes, I said Eheim, it was tough for me) have air intake diffusers. They run $15 - $30 online. Also, they seem much smaller an neater than DIY reactors. Has anyone used these filters for this purpose? How do they work? I was worried that it would just spit the bubbles out like a powerhead with a venturi.

I was looking specifically at these:
Duetto DJ100
Eheim Aquaball 2210

thanks in advance!
 
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I have used the Duetto DJ100 for this purpose, and was quickly disappointed with the results. Even if I could stand the immense amounts of bubbles being thrown around the aquarium, I cannot deal with an airlocked filter!:eek:

It comes with an adjustable flow switch (which is annoyingly located inside of it!) and I tried hooking up my DIY CO2 with all possible flow speeds. None of them worked, but some lasted a day or two before the filter air-locked. It also is extremely inefficient. I doubt any internal filter would work well in this manner, due to bubbles being all over the aquarium and not diffusing well. I've tried many other ideas as well, and the best is a powerhead with gravel vac attached!:rolleyes: These work very well, indeed.
 
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