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collonista snails

  1. General Reef Discussion
    so i know these snails are good algae eaters. I got them with my marshall island rock 6 months ago. I just looked in my tank with a flashlight at night for the fist time in 4 months and i must have 100 of these things visible in my 46 gallon tank. Now, my tank is freakin' clean i must say...
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