I also did a conversion of your tank's temperature... 86F (=30C) is quite warm for all the inhabitants... optimum temp for tropical fish and ADF's is 78-80F. Higher temperatures also hold less oxygen in the water. Just something to consider for your existing tropical fish. Bringing the temperature down should be done very gradually so as not to shock them... bring it down a degree at a time over a few hours till you get to that 78-80F range.

Michele