Its my first system so im a total noob with these i figure a 6 stage is bell and whistle enough for me ! Comes with a float valve and what not, might resell it, my tanks only 40 gallons lol i could fill mine twice running the system for a day lol
You might not need the float valve, unless you have something to store the water in. But you are going to need good RO/DI water not just RO, it will help with any algae problems later down the road. Won't have them!!