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For advanced users who have a reliable potassium test
Add 1 portion of Activator in 200 ml of lukewarm water
0µm) classes of plankton
Pre-fitted foam base mat
Coverage Area up to 20" x 20"
API Freshwater Master Test Kit lab grade For advanced users who haveThe API FRESHWATER MASTER TEST KIT measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, nitrite, and nitrate. With scientific accuracy for professional results, the reusable FRESHWATER MASTER TEST KIT comes with 4 glass test tubes with snap tight caps and a convenient holding tub for easy storage. Also includes a step by step instruction booklet with a colour chart that provides
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