i saw hma mentioned today for the first time so i dont know what they do but think it was to do with discus keeping
Should we consider the possibility of including the combination RO/DI units here? Might be good, as several makers now make these units. I have one. Some local fish clubs and societies have auctions. May be a place to pick up a brand new unit cheap. Once I setup my Seachem, I'll post here again.
Liz