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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.

Sera gH-Test 15ml

      944 Benavidez St,

      Binondo Manila, Philippines 1006

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      FOR CUSTOMER ORDERS

      Call: 244-1924 / 242-4302 

      Fax: 244-0031

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