hey guys. purchasing my first reactor this weekend. my main concerns are nitrate and phos so i was wondering what a good media would be. i know there are tons out there. i was told chemi pure elite but after research i see some of it might make it through the reactor.
also i run 2bulb t5 lights on a 40 breeder. how long should i set a time. there no ramping or options so its either on or off.
also i run 2bulb t5 lights on a 40 breeder. how long should i set a time. there no ramping or options so its either on or off.

