Delta Rock

Introducing   "Delta Rock”   engineered reef rock for your marine tank.

Ocean friendly, it is extremely porous and contains natural marine calcium carbonate. This allows it to foster a diverse array of bacteria and invertebrates ensuring it functions as a superior biological filter.

Not only do we engineer Delta rock we also produce “Delta Frags”. These are composed of the same material as Delta rock and blend in perfectly with your rock, they too contain natural calcium carbonate insuring your corals thrive from the get go.

Recommended ROCK to WATER ratio 1kg : 30litres

For optimal growth we recommend to maintain Alkalinity levels of between 9– 10dkh.

After adding the rock to your tank, we recommend a 20% water change weekly to maintain optimal levels.

Rock may appear lighter in colour when out of water but will return to brilliance once submerged under Leds with red spectrum

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Whole sale prices are available please email 

info@coastalpets.co.za for more information.

“Available to order” means this item is not in store right now. It can be ordered and delivered within 5–7 working days. Please confirm availability before you order.