Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
GH is the one that quit on me, the others seem to be still reacting, and giving decent results, even though they are expired.
Remember to shake well, especially if they say to shake the reagent or the test tube.
For example, the Nitrate is often reported as not reading right. But when you shake the reagents really well they start reading better.
Did you get the cycle back on track? What was going on?