Seachem Alert Combo Easy Care Smooth and Polished Texture: These

Smooth and Polished Texture: These stones have a smooth

Mussels will obtain their nutrients by filtering

often referred to in the aquascaping hobby as tiger driftwood

Flourite® Black is not chemically coated or treated and will not alter the pH of the water

Black Lava Rock provides ample surface area for beneficial bacteria to colonize

Seachem Alert Combo Easy Care Smooth and Polished Texture: TheseThe Alert Combo pack combines Ammonia Alert (1 card) and pH Alert (1 card). 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. Seachem sensor technology Includes Ammonia Alert and pH Alert Continuously monitors ammonia and freshwater pH No chemicals