Its infact a good idea. Your new tank will have bb as well that comss with Moss.I am getting some shrimp for both my tanks and will need some moss balls in both tanks. I already have four in one tank but I want to move 2 to the other tank. Would this be a bad idea with all the B.B.?
Either way its good to have existing bb with Moss regardless tank is new or old. The more Moss your tank have the more better. By the way what shrimps you planning to keep and what are the fish you have in tanks?Thankyou for your help guys, my tanks aren’t new by the way I’m adding shrimp to my existing fish tanks