Reef Octopus HOB comparison

crm

Reefing newb
Hi, quick question for someone, im sure...I'm trying to compare two HOB reef octopus skimmers....One is a normal HOB system...rated very highly, the other is similar looking, but has a "Top-Off System" and is slightly more expensive, but I havent seen any reviews...just curious what you all think and which should be the best choice.
 
The second one has a built-in ATO (auto-top off) system. This tops your tank off with fresh water to replace evaporated water automatically, but it has to be connected to some sort of reservoir with fresh water. If you do not plan on building in an ATO, then I would skip it; you are paying extra money for something you won't use. Many people do use an ATO and consider it such a time and energy saver. They really are convenient. The price difference isn't that big, and if it were me, I'd buy the one with the ATO and make an ATO system my next tank project. :)
 
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