My tank is 10-months old, only acros, started with about 65% KB Aquatics rock and 35% dry mined rock. I've also added a lot of biodiversity from ipsf from a couple different orders. I don't have many acros in this tank, as I'm trying to be patient until they are all thriving before I go nuts with all high-end acros. With that said, all of my acros are turning purple base/skin with green polyps. All of them, and they are not supposed to be that color. I'm talking ASD Rainbow, Pink Cadillac, Lady in Pink, Rouge Millie..... purple with green polyps. Not only have I never seen this, I haven't even heard/read of it. Maybe a minor trace element issue? I probably need to order an ICP test. I can list all the usual parameters, if that helps. But just wondering if someone knows of an obvious cause of this.
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