very nice tank. I have the same set up and find it very challenging to keep parameters in range. Nice work. I have six sexy shrimp in there. I used to have 10. I caught my cleaner shrimp murdering and eating on. The cleaner was banished to my 20 gallon tank to live with the evil banded coral shrimp. I also have a feather duster, neon goby, a watchman goby and a pistol shrimp. All seem to be doing well.
The only corals I can keep alive are a toad stool, a kenya tree, one purple rhodactis shroom some GSP and a yellow leather. I have tried zoas, other shrooms, montys, torches, palys....nothing else survives in there. Nano tanks are very challenging to me. You have inspired me to rework my aquascape and try something different to get the tank more productive. I am interested to see how your plumb the sump on this tank. Keep us posted. Keep up the good work.