RHP Size/Wattage?

[pet_snake_78]

I use reptile basics RHP's and I think they work well. Most of mine are in 12" cages though so I cannot say how far down the heat will still be 90F in a 18" cage. Best to find someone with a similar setup and ask I think. RHP will raise the overall ambient some too though unlike heat tape so be careful not to overdo the size of the thing, too.