I've been using an Aqua Medic 4 EVO for about a year now and it's been reliable. Has its own programmable controller and 4 pumps. The only potential drawback, especially on a small tank, is it only goes down to the milliliter (ml) level. If you need fractions of ml then you probably need to look elsewhere.
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Bob - San Diego
Current Tank Info: 125g mixed reef, 20g F/W planted
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