Tank is a 55 gallon running 2 t8 tubes 1 10000k and one 420 nano meter have a 1 inch sand bed I use a fine sand bought by mistake but works good I don't dose at the moment but plan to in the future I run a skimmer no carbon and no sump. I started the tank about 6 months ago I just transfered to the 55 cause I was running out of space and wanted the perfect size I also have 2 power heads 1 900 gph and 1 500 gph keep them at the top of the tank and flow seems good for frogspawn and star polyps I think that's about it If I missed anything let me know I will be happy to answer any questions thanks guys and gals