I got out of the hobby a couple years ago due to an unforeseen move. My wife recently bought me a 25 lagoon and this is my first ever nano tank. I tried something different this time rather than the traditional cycle process. I set the tank up and bought 2 clowns and added a bottle of Dr Tim’s one and only. The tank completely cycled in one week with ammonia never going above.25ppm and nitrite reaching .25ppm then they both disappeared and I have 5ppm nitrate. The only mistake I made was not getting my reactor for the gfo fast enough to get ahead of the diatoms. But overall things went well and I have started to add coral. This is what I’m running a lagoon 25 with an ai prime sol, jbj nano ato, and a mini max reactor.