"Dave M. Picklyk" wrote:

I've been getting a white slime building up on my white airstonee when I
have C02 bubbling through it...it's gets quite annoying since I have to
clean it every few days. What is this material? Is it harmless to the fish?
What stone does not react with the C02?---is the Rena micro fine bubbler
good for this?

Comments about that slime buildup on airstones is the main reason I
decided not to go with an airstone for my CO2 setup. In some messages
I read, it had been linked to the exploding of DIY 2-liter bottles
when it got too gummed up.

My DIY CO2 systems hooks into a Hagen diffuser. I see the same slimy
stuff as appears on airstones, but it can't block the open tubing
nearly as easily as it can an airstone.


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