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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
These net boxes are perfect for holding fish prior to shipping
Not approved for use on fish intended for human consumption
Sold out for 2026
building standards
Choose the pre-bagged 8 oz
Ammonia Alert Crystal These net boxes are perfectAmmonia 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.
