Hydrometer

[mrhasan]

Originally Posted by htfn

I'm using a cheap Coralife Deep Six Hydrometer for more than six years. I just wondering how long is these hydrometer last for? I check my water every two weeks when I do a water change.

As soon as you take it out of the pack

Jokes apart, I doubt whether anyone can answer that. Most of the people hate to use it, esp that long