I had a quick look at your setup in you gallery, It looks like you have a 50+ Gal tank with overflow and Sump with a reasonable amount of live rock in the display tank. Am i right?
So in terms of filtration, the most important questions are: what type of skimmers are you currently running?
Canister filters, fluidised bed filters and refugiums are all possibilities but for someone on a budget they are not absolutely essential. A number of people on the web site with great tanks only have skimmers and live rock for all of their filtration. So i would suggest if you want to upgrade your filtation rather than build anything like an additional trickle filter, save you money and buy some more live rock or upgrade your skimmer.
So in terms of filtration, the most important questions are: what type of skimmers are you currently running?
Canister filters, fluidised bed filters and refugiums are all possibilities but for someone on a budget they are not absolutely essential. A number of people on the web site with great tanks only have skimmers and live rock for all of their filtration. So i would suggest if you want to upgrade your filtation rather than build anything like an additional trickle filter, save you money and buy some more live rock or upgrade your skimmer.