Re: how much should it weigh?
Flexwatt. but if you are just heating one tub, a UTH is more practical.
Re: how much should it weigh?
In an emergency, a human heating pad (without an automatic shutoff! these can be hard to find these days). It needs to be controlled by a thermostat, just as a UTH does, though.
You can also pick up a cheap heat rope from Big Apple Herp on the web. Those work great, I have one that I use for quarantine on occasion.
Re: how much should it weigh?
Well after all of the craziness my little baby FINALLY ATE! It took a live hopper, i believe of the rat variety, but im super relieved! Thanks for all of your advice its been very helpful! :gj::gj::gj::banana::banana: