Easy. Step 1. remove lid/hood
Step 2. Unscrew 4 screws holding the splash shield in place.
Step 3. Apply form fitted aluminum foil IE ghetto reflector
Step 4. Trim to fit feeding vents and screw receptacles
Step 5. reinstall splash guard and screws.
Step 6. Wonder why aqueon didn't do this in the first place and enjoy increased light from pathetic Christmas tree bulb
Took ghetto reflector out for a moment to install ghetto heat shield IE one half washed soda can beneath it. Why? Because I was bored.