Shallow - Three depth settings (50'-100'-150') to choose from. Deep Water - Three depth settings (100'-200'-300') to choose from. The Standard SeaQualizer is our original device. Â It has three depth settings (50-100-150) to choose from. This device is ideal for fishing in up to 300ft of water for most effective releases. Â As a rule of thumb fish should be released from between 1/3 to 1/2 the depth at which they are caught. Â So if you are fishing between 60-300 feet, this is the device for you.