Hello! I am currently deciding whether or not to get Axolotls. I love them, but my house often reaches 72-74°F during the summer (we have AC, but we keep the house in this temperature range) and was wondering what setup would work best to cool a 40 gallon breeder Axolotl tank? I would also like the cooling setup to cool the tank to 10 degrees lower than the house and cost no more than $100. Thanks!