Yeah -- The electric bills are a little pricey but the water is free (I have a well). Last fall I purchased the entire fish room minus livestock from a local Pet store that downsized to a Couple MARS systems. In additions to the tanks which are mixtures of 10g,25g,25g,55g, I have tons of lighting, 3 very large Lifeguard 3 tier UV systems, commercial Titanium heaters, very large pumps and sumps.
