Thanks for the comments!! Yep, it is a little understocked (8 adult yellow labs, 3 juvi yellow labs, 5 acei, 3 yoyo loaches, 2 clown plecos), waiting to be sure that the bio-spira worked, but that will be taken care of shortly: I have 12 afra cobue juvis and 3 Mbamba Bay peacocks on their way.
As for the lighting, I have a 2x96W AHSupply 6700K lighting kit installed. Lights are on about 12 hours a day. Works out to 1.576 Watts/gallon, but it seems like more since those AHSupply reflectors are so efficient.