Keeping a saltwater tank?

You gotta keep an eye on your salinity, and this refractometer makes it easy.

It's an optical tool that measures the salt level in your marine aquarium.

Just put a drop of water on the lens, look through the eyepiece, and read the scale.

It measures from 0 to 10% salinity.

It's brand new, no batteries needed, and it's a lot more accurate than those floating plastic things.

It's an unbranded tool, but it does the job that matters: keeping your fish and corals healthy.

If you're mixing salt or just topping off, this tester takes the guesswork out of it.

Essential gear for any reef keeper.