 small heater
I'm looking for a reliable heater for my 20H. I'd ideally like to get 2 smaller heaters as a safety measure. Is the heater wattage equation 3 watts per gallon? If so, is there really a 30 watt heater out there? Suggestions? 
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20 High (started 5/18/06)
20 lbs live rock and 3" sand bed - Remora w/ MJ1200 & Prefilter - 10 gallon sump/fuge - MAG7 & SCWD return - 65W 10,000K PC - 15W Actinic - Red-legged Hermits - Cerith Snails - Nassarius Snails - Royal Gramma - 6line Wrasse - Maroon Clown - Wheeler's Goby - Bubble-Tip Anemone - Green Star Polyp - Button Polyps - Frilly Brown Mushroom - Green Bullseye Mushroom - Kenya Tree Coral |