Seachem Alert Series Elements:Ammonia 30 lb bag is a

30 lb bag is a heavy weight item and does not qualify for free shipping

20 Gallon Long - 30" x12" x12"

Ash (maximum) 4%

sunny reef

pour over kibble as a delectable gravy

Seachem Alert Series Elements:Ammonia 30 lb bag is aDescription Ammonia Alert is an innovative color device for monitoring toxic free ammonia in marine or freshwater environments. A sensor changes reversibly from yellow to green to blue depending on the ammonia concentration. Lasting over a year, no test kits, chemicals, or procedures are needed and the device detects less than 0. 05 mg L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. The One Year Alert Combo pack