After 6 years of struggling to grow corals and various infection troubles and crashes etc while using prime and tap water only I invested in one of these and now everything is thriving , no dosing and monthly water changes, can be a little hassle to set up but MORE than worth it in the end. Take the help and enjoy!!!
https://www.ebay.com/itm/RO-DI-REVER...53.m1438.l2649
