I have a 50 gallon breeder tank, not planted, with a 3" Rhom in there. I Was running a cascade 300 filter with an old filter with established bio media. I just added a 200 GPH Penguin 200 Bio-wheel. THink thats good filtration?
test your water to make shure it dosen't start to go throught new tank. I've use the old filter trick and it works well if the bio load is small and witht this tank being for breeders you will prob be fime but why chance it? watch the water.