I have seen an abundance of them but noone sells then as Onyx. Somewhere around September-October I saw about 7 pairs and where being sold for $40. They weren't an actual mated pair because they were too small and the fins were nipped. I was able to purchase two pairs, but lost one from a pair, now I have the three of them together. I wanted to purchase more pairs, but they were all in bad shape and I think the LFS lost all of them to brook. I haven't seen them since though. I'm thinking of trying one of Rod's Onyx to pair one up.