So you don't subscribe to AN's claim to be pH perfect? or do you not know what I'm talking about?With this smallish tank (25gal), I'm checking 3-4 times a day and often adding Technaflora's "pH up" & 'pH down". We keep the pH at 5.5 to 5.8 and the ppm at 1100 to 1300 for this week, bringing the numbers up to about 1900 at harvest time.