my own experience with a bad aptasia outbreak was the kalk injection didn't work - made it spread i think - first time no luck with peppermint shrimp then learned about californian versus carribean peppermint shrimp - and two weeks later i literally had to search the tank to find the few remaining aptasia - shrimp remain as good reef residents
curious thing - there is one large one left that has been completely ignored - must be inaccessible in some way to the shrimp
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