If you get 'fresh' test kits, they should be good for a year. They should always have an expiration date stamped on them.
The problem is that places will order a whole box of kits...and then it takes them a year to sell 2 dozen nitrate test kits.
I don't test my tanks as much now, because I've learned how they use up nutrients. But in the initial first 2 months, I was testing nitrate and phosphate 3 times a week.
Filstar XP2 PIMP #3
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- see specs on my tanks, and photos of how they've evolved