Jmlorfam
Aquarium Advice Regular
Hi all! I am currently in the process of setting up a new system. My current system is a 55g FOWLR. I am upgrading to a 75 FOWLR w/ a sump (30 gal). I am building my own stand and when I am ready will begin the transfer. My question is this......if i am using water and substrate from my old tank will my new tank still have to cycle? (since its twice the capacity) Not sure how safe this will be and was wondering if there is a formula on cycled water vs new? thanks in advance.