i have a 1.5" tomato clown and a 3" yellow tang in a 120g. i want to eventually add: two percs, blue tang, possibly another tang, and an angel. any thoughts or suggestions?
Tomato's are fairly aggressive, but in a 120 they should be able to coexist with a pair of perc's if they keep to their own territory. Once you have a blue tang and yellow tang in there, you may not want to add another tang. A 120 is a large tank but still only 4' long, and as you know tangs like to swim. If you do add a 3rd tang make sure it does not look similar to the yellow or blue or they may fight. A dwarf angel would be great, I don't know anything about the larger angels so I won't comment on them. HTH