I'm not familiar with a flametail blenny, got a picture? I'm curious.....
I had a redlipped blenny that was so nasty I put him in the 90g aggressive tank where he immediately picked a fight with the biggest fish in there and he disappeared that night. :-(
Some fish just have a nasty disposition.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.