Brightwell Aquatics Dry Rock Bacteria Starter Kit
The Brightwell MicroBacter Dry Rock Bacteria Starter Kit is crafted to initiate and cycle a new marine aquarium using dry rock or synthetic rock along with dry sand, in the absence of fish.
This comprehensive kit contains:
- A 2 oz bottle of MicroBacter QuikCycl Ammonia Nutrient for Fishless Cycling
- A 125 mL bottle of MicroBacter Start XLM
- A 500 mL bottle of MicroBacter CLEAN
MicroBacter QuikCycl
Expertly formulated nutrients for fishless cycling, helping to develop robust nitrifying bacteria populations in both freshwater and marine setups.
MicroBacter Start XLM
A highly concentrated 15x strength live tank starter nitrifying culture, designed for quick cycling of new marine, reef, and brackish aquariums, offering greater stability and faster establishment of beneficial bacteria.
| Component | Volume |
|---|---|
| MicroBacter QuikCycl Ammonia Nutrient | 2 oz |
| MicroBacter Start XLM | 125 mL |
| MicroBacter CLEAN | 500 mL |
FAQ
How long does it take to cycle a marine aquarium using this starter kit?
The cycling time can vary depending on water conditions and tank size, but MicroBacter Start XLM is designed to accelerate the process, typically completing cycling in 2 to 4 weeks with proper monitoring.
Can this kit be used with synthetic or dry rock substrates?
Yes, this kit is specifically formulated for use with dry rock or synthetic rock along with dry sand to establish beneficial bacteria in a fishless environment.
Is the MicroBacter Start XLM safe to use in reef tanks?
Yes, MicroBacter Start XLM is designed for marine, reef, and brackish aquariums and is safe for use in reef systems when following recommended dosing instructions.

Dan Pullman –
I used this kit to cycle my new 55-gallon marine tank without fish. The instructions were clear and the bacteria established quickly. My ammonia levels dropped to zero in about three weeks. The kit made the process much easier than I expected.
Joseph McDonald –
The dry rock and bacteria mix worked well for my first marine setup. I followed the dosing guide carefully and saw stable nitrate and ammonia levels within two weeks. A reliable choice for beginners.
Ian Terry –
I was skeptical about fishless cycling, but this kit made it manageable. The QuikCycl nutrient helped maintain consistent ammonia levels, and the Start XLM started the nitrifying bacteria fast. Highly recommended.