marbles Posted May 21, 2011 Report Share Posted May 21, 2011 just finished my new 3ft sump for a 4x2x2.5 tank can i start to cycle it before i get my tank tank is a couple of days off thanxs ? Link to comment Share on other sites More sharing options...
ronny Posted May 21, 2011 Report Share Posted May 21, 2011 Ofcourse you can. Did that with my last sump. Keep in mind tho you will need to have your ammonia spike to a higher level when just the sump is cycling so it can then handle the quantity of waste, not the level, the larger fully stocked tank will produce Link to comment Share on other sites More sharing options...
raycam01_au Posted May 21, 2011 Report Share Posted May 21, 2011 yes.......................................... Link to comment Share on other sites More sharing options...
