new tank
I'm setting up a new tank in which I will have macros. Should I put miracle mud or some similar substrate under the sand? #2 my red gracelaria is bleaching and turning green in spots. Why?
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Current Tank Info: 40g breeder DT LR & Macro Algae - 2" sand, 6 T5s & 2 fans in hood; 30gL sump/fuge w/MSX 200 skimmer & other equip.; (mangroves in DT - roots are great look)
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