Aquatic Plant Forum banner

1 - 3 of 3 Posts

·
Premium Member
Joined
·
357 Posts
Discussion Starter · #1 ·
I have some liquid bromothymol blue that's probably 3-4 years old. I'm wondering if it's still good.
 

·
Registered
Joined
·
4,700 Posts
I've had it for many years in solution, and it has shown no change . As long as it is colored, it should be good. If it turns colorless, then it is bad. I would not worry about it.
 
1 - 3 of 3 Posts
Top