I am getting ready to set up a predatory tank. I currently have a 65 gallon salt water tank...all peaceful. I also have a 37 gallon seahorse tank. I am ready to get a tank with a lion fish, small eel, maybe trigger and angels. My question is what do you think a minimum size tank is for this project? I am thinking at least 100 gallons. As we all know...more gallons...more money. Any other input would be appreciated.