Complete waste of money if your planing to use them on a saltwater tank as the readings are completely wrong an can corse your tank to crash or make you lose fish and corals. If you want a saltwater test kit buy a proper one
Verified purchase: Yes | Condition: New
very quick and easy to use
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
Great thanks
Verified purchase: Yes | Condition: New
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