Seachem Combo pH/Ammonia Alert 1 Year M Series Each pack of ten tablets

Each pack of ten tablets treats a 12 X 30 inch plant bed twice

riboflavin (vitamin B2)

and rapid phosphate absorption) while still being very economical

Size: 79 x 33 x 66 cm (31 x 13 x 26"")

Also contains iron

Seachem Combo pH/Ammonia Alert 1 Year M Series Each pack of ten tabletsThe Alert Combo pack combines Ammonia Alert (1 card) and pH Alert (1 card). Ammonia Alert and pH Alert are almost half the size of competing products. At 1. 5" x 2. 5", they are small, clear, and unobtrusive, so they won't detract from the view of your aquarium. Simply place Ammonia Alert and pH Alert visibly anywhere in the aquarium or filter. Its that easy. No chemicals or test procedures are required. Ammonia Alert Ammonia Alert's sensor changes