Assuming you manage export of nutrients (activated carbon / phosphate minus / zeo mix / probiotic / skimming) and detritus (mechanical filtration), you are ulrs, you add coral foods (AVBE) and you supply trace elements through comp 1 & 2, what is the function of comp.3 and what else water changes offer to an AF system?
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Giorgos
Thalassographia Reef
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