Before you buy one, may I make a suggestion?
Not all hyrometers are created equal. For $25 I bought a ASTM Lab grade hydrometer that has a very narrow range of 1.000 to 1.050. Very large easy to read deliniations.
The ones at the LFS
are not very accurate from what I've read here.
It comes in very handy if you ever have to do a hypo treatment on your fish.
If interested, I can get you the details on it.
120 g FOWLR
, Pro Clear 200 19 gal
. sump (bio balls removed), 50# Walt Smith FiJi LR
, 150# reefersrock base, 300# DSB
, Iwaki MD 20 return, (2) Rio 600s, (2) Hagen 802s, Amiracle Quad II skimmer, (2) Coralife 4 X 65s, 2 Lebo moonlights, (2) 120 mm vent. fans,
(2) Perc. Clowns, (1) Yellow Tang, (1) cleaner shrimp, (2) Henis, pending: Foxace Lo, Flame Angel, blue legs, scarlets, 4 emerald crabs, nassarius snails, 50 mexican turbos, (1) good bankruptcy attorney when this hobby blows out of control!