I currently also have a 55 gallon tank but I’ve had mine for 11 months and I have two pigmy angels and they don’t even bother my corals my two favorite angels are the flame angel and the coral beauty which I have both and a good anemone to get would be a rose tip they are good pricing about 50$ and are easy to take care of and they don’t need to much lighting in your tank I have the same exact lighting[emoji23] another recommendation is for a cleaner wrasse or a cleaner shrimp just in case of worse case scenario of ick
That’s my tank in the 7th month a kole tang is also good tang to have it’s pretty and it love eating algae 24/7 for your corals I highly recommend reef roids after I started using these all of my corals became magnificent in color and my Duncan’s and my frogspawn have been splitting its amazing I would never change to any other thing for feeding them I love my tank I have three tangs a blue yellow and kole tang a mandarin diamond back goby 4 green chromises blue damsel 2 perculas one sharknose goby one cleaner wrasse a coral banded shrimp cleaner shrimp six line wrasse flame angel and a coral beauty whole bunch of snails and hermits two emerald crabs for the algae long nose hawk fish and I think that’s it so those are all the fish I have you can get any of those they are amazing fish but other fish would be a purple tang they are expensive but beautiful any anthias are great any clownfish is great don’t get any triggerfish they eat corals and rocks make sure all your parameters are on point and that your temp is 74-78 and keep your tank clean of algae but personally I like to keep he coralline algae so I would keep that and that’s all I got for you