- Reaction score
- 2 years
They last a year apparently and can be used for both Saltwater or Freshwater. They are pretty cheap really. I'm going to try them.ayelie said:Hey guys.
How long do they last? Are there different ones for Saltwater and Freshwater? I can see where it would be a good idea. Just a week ago I had an ammonia spike, even thou I found it I really don't know how long it was up. I guess I will be looking into these. Are there more brands than this one??