Addback Calculator Example:
If you're running the 0-8-16 formula, at 0.7 conversion with a 20 gallon res. When you pour a fresh res, your ppm will be around 1250. A week has gone by, and some of the water has been taken up by the plants, some has evaporated, and now your res is at 947 ppm. You need to get your ppm from 947 to 1250. Here is the equation:
((target - current) / target) * 8 ml per gallon * res gallons = Flora Micro (ml) either double this figure to get Flora Bloom (ml) or use 0-8-0 of Flora Nova Bloom.
Example:
((1250 - 947 ) / 1250) * 8 * 20 (303 / 11250) * 8 * 20 0.24 * 8 * 20 = 38.4 ml Flora Micro 38.4 ml Flora Micro, double that and you get 76.8ml Flora Bloom.
So 38.4 ml Flora Micro and 76.8 ml Flora Bloom to add back to your 20 gallon res to get you from 947 to 1250. Flora Nova Bloom, has the same properties as FB & FM combined, so, you just drop the FB part of the calculation (Instead of 0-8-16 you use 0-8-0) and add just 8ml pG of the FNB.
Calculated EC/TDS levels:
EC microsiemen:
0-4-8: 946 µS
0-5-10: 1184 µS
0-8-16: 1894 µS
TDS @ 0.5 conversion:
0-4-8 = 473 ppm
0-5-10 = 592 ppm
0-8-16 = 947 ppm
TDS @ 0.7 conversion:
0-4-8 = 663 ppm
0-5-10 = 829 ppm
0-8-16 = 1326 ppm
Silicate is an additive. here's the order you need. First add water, then your nutrients, then additives/supplements, then PH your soup...hope that helps.