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 - Bacteria & Water Conditioner for Fish Tank or Aquarium, Populates Biological Filter Media for Saltwater and Freshwater Fish

Product ID: 336262166

Details

Brand
Brightwell
Item form
Liquid
Item weight
3.47 kg
Liquid volume
4 Liters
Unit count
1 Count

💧4L liquid for large tanks

🦠7+ aerobic & anaerobic microbes

🇺🇸Made in USA, premium quality

€ 371.49

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Description

🧬 Elevate your aquarium’s ecosystem — because your fish deserve the best!

MICROBIAL MASTERY - Advanced bioculture formula accelerates nitrification & denitrification for crystal-clear water
ORGANIC WASTE WARRIOR - Rapidly degrades organic carbon, ammonia, nitrite, nitrate & phosphate to prevent toxic buildup
DUAL ECOSYSTEM SUPPORT - Optimized for both freshwater & saltwater tanks, ensuring versatile aquatic health
HYDROGEN SULFIDE REDUCER - Minimizes harmful gas production, boosting oxygen levels for vibrant aquatic life
TRUSTED AMERICAN INNOVATION - Veterinarian-tested, USA-made excellence trusted by aquarium pros worldwide

Brightwell Aquatics MicroBacter7 is a scientifically formulated liquid bioculture containing a complex blend of aerobic and anaerobic bacteria designed to enhance biological filtration in both freshwater and saltwater aquariums. This 4-liter powerhouse accelerates nutrient cycling by promoting nitrification and denitrification, reduces harmful compounds like ammonia and phosphate, and improves overall water clarity and quality. Made in the USA and veterinarian recommended, it’s the go-to solution for maintaining a thriving, crystal-clear aquatic environment.

Specifications

ASIN	B0849W1V96
Allergen Information	Sulphites Free
Best Sellers Rank	#11,057 in Pet Supplies ( See Top 100 in Pet Supplies ) #72 in Fish Medication & Health Supplies
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,352)
Included Components	MicroBacter7
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	7.65 Pounds
Liquid Volume	4 Liters
Manufacturer	Brightwell Aquatics
Manufacturer Part Number	BAC4L
Model Number	BAC4L
Target Species	Fish
UPC	810086017782
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 371.49

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

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TrustScore 4.5 | 7,300+ reviews

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