Fish R Fun Aquarium Fish Tank Heater 50w Aquarium Internal Filters and the Bottom Output setting

and the Bottom Output setting is for deepwater agitation

Perfect for beginners and experienced hobbyists

It is used in plant baskets and prevents the plant from rotting

Central weir with twin overflow (Standard downpipe plus emergency overflow)

Fish R Fun Aquarium Fish Tank Heater 50w Aquarium Internal Filters and the Bottom Output settingFish R Fun Aquarium Fish Tank Heater 50w Keep your fishy friends happy and healthy with the Fish R Fun aquarium heater. This fully submersible heater features a scale that allows you to carefully adjust the temperature of your tank and includes suction cup attachments to keep it fixed to the side of your tank. The high quality element in this heater will ensure that you can keep your fish at the perfect temperature consistently. Suitable for aquariums