I’m setting up a 180 gal freshwater aquarium for a stingray and I fully understand I will need to upgrade to a larger tank in 3-5 years but I am looking for heating recommendations for the aquarium. I am running a fluval fx6 canister filter. I’m open to inline heaters or submersible heater but needs to be stingray safe. I’ve had the fluval e300 watt heaters in the past on my 125gal but would like to try and keep as much stuff out of the tank as possible for the ray.