polarbear Posted March 8, 2010 Share Posted March 8, 2010 I have a black spiny sea urchin up for trade. I have had him for about 3 months and he is doing great. the only reason im getting rid of it is because it has been eating my xenia. i dont know why but he has already ate 2 pieces. also hes been knocking things over in the tank since hes in my 29 gallon biocube. Im looking to trade him for something. nothing big just some zoas or something. let me know if your interested. here is a picture taken on me phone. Black Spin Link to comment Share on other sites More sharing options...
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