Ok so my new set-up is a 130litre tank which I intend to have as a reef tank. I purchased 20kgs of Fiji live sand and 15kgs of 2 year cured live rock and all water pre mixed. I am running a beta 1600uv external canister filter with built in skimmer 2 x power heads. And lighting is white/blue mixable led in total 150w. I have been cycling for 3 weeks with lights out. No algea growth and current parameters as follows: Alkiliity 10 Ammonia 0 Phosphate 0 Calcium 380 Nitrite 0 Nitrate 10ppm Salinity 35 Temp 79 My question please is how am I doing? Stevo