GH is on the low side, 3 to 6 is the recommendation for plants, I would watch for calcium deficiancy at the tips of stem plants (curling, distortion), if that happens add about 1/8 to 1/4 tspn gh booster or Seachem Equilibrum to each 5gl of change water. Don't adjust in the tank or all at once or you could shock the fish if it's too much too fast. If no fish or shrimp then no worries. Measure tds with a digital tds meter, its kind of overkill though unless you're a breeder or something, it's fun for learning about water though.
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