The Aquatic Life Wi-Fi Reno RGBW LED lighting fixture 36" Is great choice for fish-only tanks. This version features built-in Wi-Fi that communicate directly with your phone. This 36 inch model fits aquarium frames between 35 inches and 39 inches. Appropriate for fish-only aquariums. Built-in Wi-Fi to communicate directly with your phone or through a router. Easily dim the RGB and White LED's to the desired intensity. Free cloud account included, so you can control and program the fixture remotely. Program multiple on/off times directly from your phone or tablet. Adjustable width frame mounts hold the fixture securely above aquarium. Fits aquarium frames between 35 inches and 39 inches.