So I bought Elvis the 10 gallon tank and hood. The heater kept going up to 86, brought it back, got another. Thermometer kept saying 83, but I found a new thermometer I liked better, and it says 78. The heater is set at 80. Average between thermometers. Good enough I guess. So anyway, the fluorescent light in the hood was not that bright and purpley, so I went and got a light that is better for plants and brighter. It only lit half way, then burnt out the light fixture. So I now have my old 29 gallon fixture on the 10 gallon hood. It's the same width as the 10 gallon one but an overhang of a few inches on each side. Stupid equipment.