Here we have available a very reliable low cost internal filter As a guidance for what size of filter you need to do a clean up, depending on what size of tank you have and the type of fish you are stocking.
Here is a range of the Boyu External Canister Filters, please make sure you check the full description of the canister filter you are buying before purchase.
Betta Thermal Compact Submersible Aquarium heater reliable circuit and high quality materials ensure output of heat and keeps the water temperature steady. Please read the description for the size of heater you will need for your aquarium.
Marina Flexible LED Air Curtain provides an excellent way of adding visual pizzaz to aquascapes as well as improving water circulation and oxygenation.