Aquarium heaters might be the most important piece of equipment when it comes to proper aquarium care. We carry Finnex and Via Aqua. Not maintaining consistent water temperature can have a negative impact on your tank. Please keep in mind that if you are going to be using the heater(s) in your sump or around other equipment it might come in contact with you will want to purchase a heater with a guard. This is prevent any melting or burning should the heater coming in contact with anything. Should you have any questions please contact us.