So my father might get me a 180g tank, so I wanted to plan ahead, I want to do a larger fish setup, i only have a 55g with a male green texas and a senegal bichir so both of them will be upgraded and go into the 180g, both are still pretty young approximately the green texas is only 3-4inches and the bichir is 2-3inches. what type of filtration should I run as well? Im thinking a HOB that i currently have on my 55g then a canister. The scape i will be doing is a under the river scape with river rocks, driftwood (Large pieces), fake plants and pool filter sand. Thanks in advance!