Hello, I was looking for some ideas of what you guys use for auto top off reservoirs. I have to find one for my tank however I do not have much room. I have only about 5 inches wide and 20 inches deep, height isn't an issue since it will be outside of my tank stand. So it would be best to find some sort of narrow fit container that can hold between 3-5 gallons. I saw some online vendors sell 5 inch wide reservoirs but cost around $100. Any thoughts?


