Tetra

c02 optimat works for a while - and then stops...

I bought a kit just to see what could be achieved for the small price - but i wouldnt recommend it as along term carbon dioxide source.

The plastic thing that the carbon dioxide resides in in the tank, has a membrane on the top of it that allows the carbon dioxide to slowly diffuse into the tankwater. - I find that the membrane gets clogged with algae very quickly and then needs to be scrubbed - which is probably damaging it over time.

My partner (i think) is buying me a propper set for crimbo.. (fingers crossed)

Its probably better for low light level tanks where the algae is less of a problem.

x
 

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