Quote:
Originally Posted by crimper
I used to put crushed corals on my HOB as a filter media on my decommissioned 20G nano, I noticed that the crushed corals depletes as times goes by. I think that they react with the trapped CO2 in foam media and also CO2 from the water itself releasing Ca and Alk back in the water.
I didn't noticed PO4 spike. Maybe it's worth doing some experiments with that Walter  |
Hmmm, I do have a foam in my prefilter canister in my DIY carbon/GFO reactor. Maybe I could stuff the crushed coral in the foam and see what happens.