tonyespinoza
Premium Member
Which have you found to be most reliable for a large system? I'm dosing 2 part on my 350g system, but want to augment with Kalk. Any recommendations? Seems the Deltec is a radically different approach from the PM and MRC options... Obvious price difference -- i'm more concerned about reliability than anything else, given the bulk of my investment is in the live stock, the rest of the system, the cost of operation, and of course, my time! 
