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, 2L

Product ID: 17725668

Details

Brand
Brightwell
Item Form
Liquid
Item Weight
16 ounces
Liquid Volume
2 liters
Unit Count
1 Count

💧Rapid water quality enhancement

🦠Advanced microbial formula

🇺🇸Proudly American-made

€ 143.05

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Description

🦠 Elevate your aquarium’s ecosystem with microbial magic!

NUTRIENT NINJA - Accelerates nitrification and denitrification to keep your aquarium’s ecosystem perfectly balanced.
TOXIN TERMINATOR - Rapidly reduces ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide for a pristine aquatic environment.
MICROBIAL MASTERY - Harnesses a complex blend of aerobic & anaerobic bacteria for superior filtration and water clarity.
VERSATILE VITALITY - Perfectly formulated for both freshwater and marine aquariums, supporting diverse aquatic life.
TRUSTED AMERICAN QUALITY - Scientifically backed, veterinarian recommended, and proudly made in the USA for unmatched reliability.

Brightwell Aquatics MicroBacter7 is a 2L liquid bioculture aid featuring a scientifically advanced microbial formula that enhances biological filtration and water quality in both freshwater and marine aquariums. It accelerates nutrient cycling, reduces harmful toxins, and promotes a clean, healthy aquatic environment. Made in the USA and veterinarian recommended, it’s the go-to solution for aquarium enthusiasts seeking vibrant, balanced ecosystems.

Specifications

ASIN	B00412Z28S
ASIN	B00412Z28S
Allergen Information	Sulphites Free
Best Sellers Rank	#6,734 in Pet Supplies ( See Top 100 in Pet Supplies ) #51 in Aquarium Water Treatments
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,490)
Date First Available	October 31, 2008
Global Trade Identification Number	00810086012213
Included Components	MicroBacter7
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	16 ounces
Item model number	BAC2L
Liquid Volume	2 liters
Manufacturer	Brightwell Aquatics
Manufacturer	Brightwell Aquatics
Manufacturer Part Number	BAC2L
Model Number	BAC2L
Number of Items	1
Pet Type	Fish
Product Dimensions	2.75 x 6.25 x 8 inches; 1 pounds
Target Species	Fish
UPC	810086012213
Unit Count	1 Count

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€ 143.05

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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