Hi, I am new to tropical fish keeping, could anyone tell me if when setting up my new tank should I use some water from my cold water tank,and if so how much? Also, Iwould like to use blaqck sand as the substrate is this ok,and what type? Thanks.
No need to use water from the coldwater tank unless you are upgrading the fish in that tank to the new one (which if they are coldwater, they do not mix with tropicals due to temp requirements). Using a piece of the filter media from the coldwater would be good as it would help seed the new filter (this is where prob 95 to 99% of bacteria lives).
Black sand is fine as there a number of members who use it. You can prob find this at your lfs or online on a aquarist supplier like Big Al's or somethign like that.
Ox
Thanks,should I take one of the foam filters out of my cold tank and put it it my new filter?