Not that I've used very many (mostly been using Kalk till this point) but I just started using a MoCalc 300 (Austin Oceans) Very simple to use, adjust (has a flow meter build in) , PH probe port and is silent. The size should work even if I go to bigger setup or much larger stock.
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Mike
150g reef, 55g sump, T5's, Vertech 200A, Profilux III - German made is highly over rated, should just say Gerpan made.
Reefkeeper - individual obsessed with placing disturbing amounts of electricity and seawater in close proximity for the purpose of maintaining live coral reef organisms.
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