Thanks for the info, I'll look more carefully on the forum for other threads on this. I'm really looking at a "moderate light, moderate growth" kind of approach, so I figured a yeast reactor might be enough CO2 for my needs. My water is RO/DI, reconstituted with Equilibrium and alkaline buffer, shooting for GH/KH around 6 dKh. Filtration is just a tiny 80gph hang-on and a Rio 50 for a little extra flow. Sounds like the state of the art in DIY yeast reactors has progressed much since I last tried it, will look into it.
Thanks,
Paul
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