Can this go in a 29gallon biocube
I think you could do this. For a reef I would say go with 1" of fully grown fish per 3 gallons so that gives you 10" of fish but you have a few bottom dwellers on there so I think it would work. Not sure about the court jester goby. The only thing I would change is do 1 clown and add him last. If you must have a pair try to get a mated pair I put two random occilaris clowns in a 55 and one killed the other. The Pygmy wrasse looks awesome by the way!