Your tank has progressed very quickly since you got back into the hobby. I really miss my old 75 and especially my 5 gallon nano. Any plans to try your hand at some sticks at some point? You could grow some nice ones with all the vertical space available in that 55. I'll probably end up doing another set up after my 33 long is up and running just for softies. I'll have too much light and current in the 33 long for softies to thrive. Zoas, paly's, mushrooms, xenia, etc. are just too cool not to have. I see an AIO in my future.