I think some of the testers aren't for my needs, but they may make those really expensive ones, like the $200 ones for nitrates and stuff like that.
The only three that are handheld and small are the ones I have. But if theres another one you're looking at link it! lol
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.