Right now I have a 20 gallon long, relatively heavily planted with one betta, 5 panda cories and 5 otos. I'm currently running two cycled filters on it, one tetra whisper 10 and a topfin 10, one on each end. I'm thinking about switching to just one filter, I'm looking at the Aquaclear 30, since the aquaclear filters seem to be so popular. I'm not sure if it's worth making the switch or if I should just stick with the setup I have. According to AQAdvisor (I know it's not the be-all end-all, but I like to use it as a reference) with what I have now I'm at 96% filtration capacity, but the AC 30 would put me up to 115% or so. What do you all think?