My biggest tank 65 gallon. First tank after being out of the hobby for some years. Up and running flawlessly for 8 months. It's a low tech dirted tank with MGOPS capped with STS. Filtration is by one large Sun Sun canister with UV and one Aquaclear 110. Lighting is provided by 2 T5HO bulbs. Tank is home to Neons, Harlequins, Glo lights, RCS, and snails. Of course my favorite feature is the lush plant growth. My best advice for fellow aquarists experienced or novice is to research all you can about the kind of setup you want to do. Also low tech dirted tanks are an absolute pleasure IMHO. One more thing- Acurel F was used after the substrate was placed in the tank and the filters where cycling. It made a dramatic improvement in the water clarity.
P.S- Sorry for the poor quality cell phone pics.