Caribsea Arag Alive Black Hawaii Sand 20lb

Description:

Caribsea Arag‑Alive Black Hawaii Sand is a premium aragonite substrate formulated for marine reef and saltwater aquariums. Harvested from natural aragonite sources and gently tumbled, it offers consistent grain size and surface texture to minimize dust and cloudiness. The rich black hue accentuates vivid corals and fish colors, while providing essential buffering capacity to help stabilize pH and support calcium levels in reef systems. Ideal for reef tanks, it benefits both aesthetics and aquarium chemistry.

Technical Specs:

• Bag Weight: 20 lb (approximately 9.1 kg)

• Grain Size: 0.25 – 3.5mm (medium to fine)

• Composition: Natural aragonite substrate

• Color: Deep black with slight silver sheen

• pH Buffering: Removes acidity, helps maintain stable pH levels

• Reef Safe: Suitable for live rock, corals, and invertebrates

• Dust Level: Low–medium; pre‑rinsed and tumbled for clarity

• Recommended Depth: 1–2 inches in reef setups