I've been testing my tank on a regular basis, and the last couple of test they have been off the charts. The colour of the water in the test tube turns yellow instead of blue ?? So my chart only shows results for blue like colour. Any idea what yellow is ? i'm guessing 4 or 5 range, but no idea??
troy :rockin:
http://personal.nbnet.nb.ca/piranha/
troy :rockin:
http://personal.nbnet.nb.ca/piranha/