Oceans Design offers Titanium Finnex Tube Heaters for submersible tank applications. These heaters are virtually unbreakable compared to competitive aquarium products, and the titanium tubes are corrosion-resistant, for long life in a saltwater environment. The titanium tube heating provides a stable temperature environment for live feeds cultures, minimizing temperature swings that put stress on rotifers. Models are available from 300-800 Watts. Heaters come with 6' three prong power chord, and are compatible with Finnex Heater Controllers or alternative temperature controllers.