well, the prism is one of the harder ones to use, it takes a little patients but will IMO be alright for your 55 gallon if its rated for 100 gallons.
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210 Gal Reef w/ 55 Gallon Sump/Fuge, 125 Gal Fish Only, 65 Gal Seahorse-29 Gallon Sump, 55 Gal FOWLR, 54 Gal Corner FW Community, 20 Gal Nano FOWLR, 55 Gal Piranha, 29 gallon QT
"All the yellow tangs and clownfish in the world can't save you now! hahahah" Peter from Family Guy
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