I have removed the entire sand bed, all corals that have died have been removed, doing water changes seem to feed it, but have done 25% 2-3 times a week, all levels appear normal with sailifert test kits
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aga 180g dual overflow 77g sump, mak 4 return, dart pump for closed loop 3 250w se 15,000k mh, 4 80w t5 250 vertex skimmer,3l vertex zeo reactor, marine tech cal reactor.regal,powder brown and yellow tangs, chromis eyelash blennie blue mandran, slowly filling with SPS
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