| live rock I started with FO tank then went to FOWLR. Had 40lbs of base rock and 45lbs of live rock, had tank running for 3 years could never get coralline algae to spread. Now trying to make it a full reef tank, add a couple of fresh pieces of live rock to try and make it spread, and it's the same thing as before it looks like its just disappearing. Could the crabs be picking it off.
My parameters are fine even took sample to local fish store to double check. Just stared to use phosban and chemi-pure because i get lot of red slime algae. Also on second bottle of purple up. I need ideas?:confused: 
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Paul Chicago, IL
Tank: 75 gallon Reef
Running For: 4 Years
Lighting: 2x65w Actinic, 2x65w 10,000k
Lunar LED Light Strip
Filter: Eco system Refugium, Magnum 350
Skimmer: Classic Berlin
Power heads: Maxi-Jet Natural Wavemaker, 885 gph
Live Rock: 85lbs Fiji
Live Sand: 60Lbs Caribbean Live Aragonite
Invertebrates: 20 Hermit crabs, 20 Margarita snails, 2 Sally Light foots, 3 Emerald Crabs, Mushroom Polyps and Star Polyps
Fish: 4 Percula Clown fish, Coral Beauty, Diamond Golby, Bi Color Pseudo
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