Compare webshops (1)
Sponsored links · Some shops pay us a fee
Sort by:
Shops with other sizes
Nitrate value for optimal plant growth, possible algae formation in fresh and sea water. Water colour compensation system: fill the curves of the glass with test water, pour into the tubes into a dome, place the tub in the holder, read the values on the colour card. Application: fresh water reinserted: 1 times a week. With new seawater system: 1 x week. Problems with green algae. On the JBL homepage, you can find detailed information about water analysis in aquarium or pond subjects and the solutions for the problem. Box contents: 2 x nitrate test tubes.