If you intend to have LR
in the tank, then the above is correct...ditch the bioballs. You'll want about 1-1 1/2 lbs of LR
per gallon to take care of the biofiltration. Your sandbed, should you decide to do a DSB
, will need to be sugar sized aragonite sand at a depth of at least 4". If you want to keep corals in this tank, I would definitely set it up with LR
at least and, IMO
, a DSB
Also, I hope you're planning on a dwarf lion. A Volitans will get way too large for a 55. So will most tangs. A 75gal is about the minimum recommended size for a yellow tang. Perhaps a fuzzy dwarf lionfish and a couple of other fish that will stay relatively small.