Oceans Design carries the highest quality fiberglass tanks from our sister company Gemini Fiberglass Inc. Our rectangular tanks and troughs are available in various sizes from 27 gallons to over 5,000 gallons. All tanks are manufactured with a smooth polished gel coat interior and reinforced to minimize wall deflection. Tanks are available with many options including Stainless steel or plastic screens, screened drains, glassed fittings, etc. The Gemini name has been recognized as one of the best tanks in the industry for over thirty years. If you don't find a tank that meets your size requirements contact us to have a high quality custom tank made per your specs.