SeaChem instructions for this product begin with "Remove Protective Film". When the box is opened, the ONLY protective film on the pH sensor is the operating point. Having never purchased this product before, I scrape what I later learn is a working point. Second, I open the ammonia sensor and THEN find out what SeaChem means by "protective film". Without further explanation and trusting SeaChem's lousy instructions, I simply rendered the product useless. It is possible to write persuasive instructions for using the product to help first-time users. I am returning this product for credit and reordering. I have no idea if the product will end up working as I couldn't guess what kind of "protective film" SeaChem was trying to scrape me off. However, SeaChem CAN rewrite its instructions so users understand what they should do when using this product for the first time.
🧪 Enhanced API Replacement Test Tubes with Caps - Ideal for API Freshwater Master Test Kit - 24 Count Box
8 Review
FUNSWTM 7 in 1 Aquarium Test Strips: Accurate Water Testing for pH, Nitrite, Nitrate, Chlorine, GH & KH Levels
8 Review
Fluval A7551 CO2 Indicator Kit
9 Review
Highly Efficient Seachem Purigen for Freshwater & Saltwater Filtration
9 Review
🐠 U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review