Can we add this to an existing reef with slightly elevated ammonia?

If by existing you mean live stock in it? Yes, and if you mean no stock but ammonia, yes again. You might be better off doing a water change if you have life in tank though. If you dose this you will have to monitor nitrite and nitrate cycles.

Im new...will this kill off my invert food sources or hurt them in any way?

It will not kill your invert food source. It’s bacteria that’s beneficial to your aquarium

Noob question how much of this do I use on a 32 gallon biocube? It’s a new tank I can’t find any measuring cups for ML anywhere n my town

Once your tank has been fed regularly for a few days either with out without fish to start the bacterial cycle, add half during the first week and the other half during the 2nd. Add a small amount after water changes is also a good idea for upkeep. Buy 2 bottles.

how long did it take for this product to bring down nitrite levels?

I wouldn't use this product as a means of nitrite reduction. Live rock will do a much better job of that. I use this product as a means of adding biodiversity to my tank. It did nothing for nitrate levels.

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Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 500 ml

Product ID: 7737163

Details

Brand
Brightwell
Item Form
Liquid
Item Weight
16 ounces
Liquid Volume
500
Number of Packs
1

💧Rapid water clarity boost

🦠7-strain microbial blend

⚗️Advanced enzymatic nitrate control

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HK$299

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Description

🧬 Elevate your aquarium’s ecosystem — clarity and balance in every drop!

NITRATE NINJA - Enzymes convert harmful nitrates into harmless nitrogen gas, freezing tank growth when needed.
MICROBIAL MASTERY - Harnesses a complex aerobic & anaerobic bacteria system for superior biological filtration.
DUAL ECOSYSTEM POWER - Formulated for both saltwater and freshwater tanks, ensuring versatile aquatic health.
CRYSTAL CLEAR CONFIDENCE - Rapidly reduces ammonia, nitrite, nitrate, phosphate & organic carbon for pristine water quality.
MADE IN THE USA TRUSTED WORLDWIDE - Scientifically backed, veterinarian recommended, and crafted with American excellence.

Brightwell Aquatics MicroBacter7 is a scientifically formulated liquid bioculture containing a unique blend of aerobic and anaerobic bacteria plus natural enzymes. Designed for both freshwater and saltwater aquariums, it accelerates nitrification and denitrification processes, rapidly reducing harmful compounds like ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide. This results in enhanced water clarity, healthier aquatic environments, and stabilized biological filtration. Trusted by veterinarians and made in the USA, MicroBacter7 is ideal for established tanks seeking to maintain optimal water quality and inhibit undesirable growth.

Specifications

ASIN	B001DKSG9S
ASIN	B001DKSG9S
Allergen Information	Sulphites Free
Best Sellers Rank	#5,552 in Pet Supplies ( See Top 100 in Pet Supplies ) #54 in Aquarium Water Treatments
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,465)
Date First Available	June 24, 2004
Global Trade Identification Number	00810086012206
Included Components	MicroBacter7
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	16 ounces
Item model number	BAC500
Liquid Volume	500 Milliliters
Manufacturer	Brightwell Aquatics
Manufacturer	Brightwell Aquatics
Manufacturer Part Number	BAC500
Model Number	BAC500
Pet Type	Fish
Product Dimensions	2.5 x 2.5 x 6.75 inches; 1 Pounds
Target Species	Fish
UPC	611102132522 810086012206 787461534205
Unit Count	1 Count

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HK$299

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In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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