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, 500ml

Brightwell Aquatics MicroBacter7 - Bacteria & Water Conditioner for Fish Tank or Aquarium, Populates Biological Filter Media for Saltwater and Freshwater Fish, 500ml

Product ID: 255783598

Details

Brand
Brightwell
Item form
Liquid
Item weight
1 Pounds
Liquid volume
500
Unit count
1 Count

💧Rapid reduction of ammonia & nitrates

🦠7+ aerobic & anaerobic microbes

🇺🇸Premium USA-made quality

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VT15190

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

MICROBIAL MASTERY - Harness a complex bioculture of aerobic & anaerobic bacteria for unbeatable filtration power.
SULFIDE SUPPRESSION - Reduce toxic hydrogen sulfide to boost oxygen levels and promote healthier aquatic life.
CRYSTAL CLEAR CLARITY - Slash ammonia, nitrite, nitrate, phosphate & organic carbon for pristine, vibrant water.
DUAL ECOSYSTEM SUPPORT - Optimized for both freshwater and saltwater tanks—versatility that fits your aquatic lifestyle.
TRUSTED AMERICAN INNOVATION - Scientifically backed, veterinarian recommended, and proudly made in the USA for consistent excellence.

Brightwell Aquatics MicroBacter7 is a scientifically formulated liquid bioculture containing a blend of aerobic and anaerobic bacteria designed to accelerate biological filtration and nutrient cycling in both freshwater and saltwater aquariums. This 500ml water conditioner rapidly reduces harmful compounds like ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide, improving water clarity and overall aquatic health. Made in the USA and veterinarian recommended, it’s the go-to solution for maintaining a balanced, thriving aquarium environment.

Specifications

ASIN	B001DKSG9S
Allergen Information	Sulphites Free
Best Sellers Rank	#3,583 in Pet Supplies ( See Top 100 in Pet Supplies ) #10 in Fish Medication & Health Supplies
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,332)
Global Trade Identification Number	00810086012206
Included Components	MicroBacter7
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	1 Pounds
Liquid Volume	500 Milliliters
Manufacturer	Brightwell Aquatics
Manufacturer Part Number	BAC500
Model Number	BAC500
Target Species	Fish
UPC	611102132522 810086012206 787461534205
Unit Count	1 Count

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