CaribSea Arag Alive Hawaiian Black 4-10lb Bags – Case
CaribSea Arag Alive Hawaiian Black is a specialized aquarium substrate designed to replicate the natural conditions of tropical reefs. Developed in collaboration with public aquariums and zoological parks, this substrate ensures authenticity and performance in home aquariums.
It helps maintain a stable pH level without requiring frequent chemical additions and supports a biological balance that reduces nuisance algae growth.
Containing millions of beneficial bacteria per pound, Arag-Alive is engineered to efficiently break down waste in closed aquatic systems. It helps suppress new tank syndrome and accelerates the nitrogen cycle, allowing your aquarium to cycle faster than with traditional substrates.
| Weight | Bag Size | Package Type |
|---|---|---|
| 4-10 lbs | Per Bag | Case |
FAQ
How does Arag Alive help with aquarium cycling?
Arag Alive contains millions of bacteria per pound that are specifically engineered to break down waste in closed systems. This helps initiate the nitrogen cycle quickly, reducing the time needed for a new aquarium to stabilize.
Is Arag Alive suitable for all types of aquariums?
Yes, it is designed for use in freshwater aquariums and is particularly effective in reef and planted tanks where stable pH and low algae growth are important.
Does Arag Alive require any special maintenance after installation?
Please contact customer service

Heather Reid –
My aquarium has been cycling much faster since I added Arag Alive. The water stability is excellent, and I haven’t had to add any chemicals. The substrate looks natural and the fish seem more active.
Ava Mathis –
It arrived quickly and the instructions were clear. I noticed less algae growth compared to my previous substrate. The pH has stayed consistent over the past two weeks.
Una Tucker –
I’ve used this in a 20-gallon reef tank. The tank cycled in just 7 days, which is faster than expected. The color and texture feel authentic to natural reef substrates.
Steven Scott –
The bacteria content seems to work well. I haven’t had to perform water changes as frequently. It’s a reliable choice for new tank setups.
Lillian Lawrence –
Great product for beginners. The substrate helped me avoid the common problem of ammonia spikes. My fish are thriving and the water clarity has improved.