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

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 ml
Number of Packs
1

💧rapidly improves water clarity & quality

🦠500ml advanced microbial formula

🇺🇸premium American-made excellence

6545 kr

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Description

🦠 Elevate your aquarium’s ecosystem with science-backed clarity!

MADE IN THE USA - Support innovation and quality with a proudly American-manufactured aquatic solution.
CRYSTAL CLEAR WATERS - Rapidly reduce ammonia, nitrite, nitrate, phosphate & organic waste for pristine aquariums.
MICROBIAL POWERHOUSE - Harness a complex blend of aerobic & anaerobic bacteria for superior filtration.
VET APPROVED FORMULA - Scientifically tested and recommended by veterinarian pathologists for trusted aquatic health.
DUAL ECOSYSTEM SUPPORT - Optimized for both freshwater and marine tanks—versatility that fits your aquatic lifestyle.

Brightwell Aquatics MicroBacter7 is a 500ml liquid bioculture aid featuring a scientifically advanced microbial formula that accelerates nitrification, denitrification, and organic waste breakdown. Suitable for both freshwater and marine aquariums, it rapidly reduces harmful compounds like ammonia and phosphate, enhancing water clarity and overall aquatic health. Made in the USA and veterinarian recommended, it’s the go-to solution for professional-grade aquarium filtration and water conditioning.

Specifications

ASIN	B001DKSG9S
ASIN	B001DKSG9S
Allergen Information	Sulphites Free
Best Sellers Rank	#6,377 in Pet Supplies ( See Top 100 in Pet Supplies ) #50 in Aquarium Water Treatments
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,481)
Date First Available	June 24, 2004
Global Trade Identification Number	00810086012206
Included Components	MicroBacter7
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	16 ounces
Item model number	BAC500
Liquid Volume	500 ml
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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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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6545 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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