I've read Byron's stickys on planted tanks and have come to the conclusion that the brand new canister sitting in my trunk will likely be of no beneficial use in the 125G Brazilian biotope I have planned. I originally wanted an Mbuna set up in a 55 and it made sense. Now I have the bigger tank and want a heavily planted clearwater biotope it seems pointless.
That said I would dearly love to get my money back on that so I can stock it before the new year. I also saw the suggestion by Angel for the Hamberger Mattenfilter. It just so happens i picked up a 500gph power head for small garden waterfalls. It'd be perfect! The best part is I paid 99 cents for it and already have the other stuff I'd need. A $1 filter for my new 125 gallon tank would be spectacular. That is, provided I'm not completely delusional and this is impractical for my purposes.
Also, would there be any issue using that with my sand substrate?