Well, I bought some gutter guard mesh. I plan on attempting to create a tube out of it and secure the ends together with small zip ties. I just hope I can use the existing suction cups for the heater.

I planned on doing that today, but instead spent the past 3hrs setting up 2 Fluval Spec V's. They're in each of son's rooms. Each tank has a Beta and I plan on adding some other small fish (maybe neons). I've had the ceramic media in my 100gal for 4 weeks now so hopefully that gave the tanks a jump start.

I'll post my results of my DIY heater guard after I'm done. Hopefully it works.