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Ships within 48 hours · Estimated delivery Oct 9 - Oct 14
Measures 497 x 285 x 110 mm
Choose the pre-bagged 8 oz
Not approved for use on fish intended for human consumption
These oversized
Ammonia Alert Crystal Measures 497 x 285 xAmmonia Alert is an innovative colour device designed for continuously detecting and monitoring toxic free ammonia. The internal sensor changes colour reversibly from yellow to green to blue, relative to the ammonia concentration. The device detects less than 0. 05 mg l free ammonia and lasts over one year. Put one in every aquarium and tank.
