should be o.k. Try a flame angel, much hardier and less aggressive

The bicolour angels are almost impossible to keep and I don't know if your tank is large enough to accommodate even the dwarfs.
Here is a list of the good marine angels.
http://wetwebmedia.com/marine/fishes...estmarangs.htm

read the last post too late and got a bicolor dwarf angel. seems to be doing well and is constantly eating. i haven't fed the fish more than what i was feeding before except for putting a bit of dried seaweed on a veggie clip the angel to nibble on throughout the day.

now i've noticed my nitrate levels have shot up from the 5-10 ppm range to 20-40ppm range. will this correct itself with time? will my live rock/filters develop more bacteria to handle the increased bio-load or do i have to change something as far as my filtration is concerned?