sera Gh-Test

Total hardness-Test

Makes it easy to monitor the total hardness. For ap- prox. 420°dGH. In case of too low GH values we rec- ommend 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.

Price

$12.46

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