![Sera GH-Test-15ml[Volume - 15ml]](http://aquapix.ae/cdn/shop/files/SR04110_SeraGH-Test-15ml_Volume-15ml.png?v=1780481350&width=1445)
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sera gH-Test
FRESH WATER , PONDWATER TESTINGCARE
Makes it easy to monitor the total hardness
For approx. 420°dGH.
In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water.
For creating soft water we recommend adding sera blackwater aquatan or filtering through sera super peat.