All in all, considering the circumstances, maybe I can help some by sharing this information.
< 2 ppm
5 - 10 ppm
Over-nourished. Nitrate is accumulating. If the condition does not improve after water change, there may be too many fish.
20 – 45 ppm
Excessively over-nourish. Nitrate has accumulated considerably and is obstructing the growth of the aquatic plants
or the health of the fish.
> 45 ppm
Abnormal. The result is unrealistic.
Number of fish and conditions for plant cultivation are well balanced.
0.1 – 0.5 ppm
Indicates a slight abundance of nutrients. Make sure you don’t have too many fish.
Indicates overabundance of nutrients. There is an excess accumulation of phosphate. If your plants aren’t absorbing enough nutrients, increase the number of plants and supply potassium and other trace elements to promote the absorption of your plants.
TH Evaluation (Total Hardness CaCO3)
< 50 ppm (2.8 dGH)
Acceptable limits (Favorable water conditions for most aquatic plants.)
50 - 100 ppm (2.8 – 5.6 dGH)
Hardness is mildly high. Terminal buds of stemmed plants such as Hemianthus Micranthemoides and Glossostigma will turn white, leaves will grow smaller and the growth of plants will be disrupted.
>100 ppm (5.6 dGH)
Hardness is abnormally high.
Aqua Design Amano Co., Ltd.
The Art & Science of Aquatic Gardening
ADA Water Parameter Evaluation
Pack Checker series | ADA - PRODUCT - WATER CONDITION & TERATMENT