So, my 2 new Tetratec EX1200 arrived yesterday. They are huge, I didn't for some reason even think about the canister being bigger. silly really. anyway, I have attached one to my rio240 and 1 to my other tank for now, eventually I want them both on my rio240. Currently I have an EX600 and internal Juwel filter on the rio240 as well, so was thinking that I'll swap the internal out with the EX1200 in a couple of weeks. Do you think that will have any affect on the parameters. It isn't a heavily stocked tank at all at the moment. there are about 4 otos and 2 3inch plecs, so hoping that will be ok, what do you guys think?