Caribsea Ocean Direct Natural Live Sand (40lb) chromium to measure the concentration of

to measure the concentration of nitrate colorimetrically

developed through CaribSea’s cooperation with public aquariums and zoological parks where authenticity is a must

Used in canister filters

These reagents are designed to be used with samples that have an expected range of 0

including Magnet Holder for a glass thickness up to 10 mm (3/8")

Caribsea Ocean Direct Natural Live Sand (40lb) chromium to measure the concentration ofThis substrate is different than all other live sand products on the market. Ocean Direct utilizes Sea Breathe technology, which preserves real live sand with its own original bacteria. Every breathable bag of Ocean Direct is alive with up to 1000 times more beneficial bacteria than other preservation methods. Every grain of Ocean Direct is coated with bacteria and encapsulated by capillary action in a thin film of real ocean water. The thin film is