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

Product ID: 255783598

Details

Brand
Brightwell
Item form
Liquid
Item weight
454 g
Liquid volume
500
Number of Packs
1

🌊works in fresh & saltwater

💧500ml liquid formula

🦠7-strain microbial blend

€ 80.11

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Description

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

MICROBIAL POWERHOUSE - Advanced aerobic & anaerobic bacteria for rapid filtration boost
CLARITY CLEANLINESS - Reduces ammonia, nitrite, nitrate, phosphate & hydrogen sulfide levels
DUAL ECOSYSTEM SUPPORT - Optimized for both freshwater and marine aquariums
ORGANIC WASTE BREAKDOWN - Accelerates nitrification & denitrification to keep water pristine
TRUSTED AMERICAN QUALITY - Veterinarian-tested, USA-made for reliable aquatic health

Brightwell Aquatics MicroBacter7 is a scientifically formulated 7-strain bacterial liquid designed to enhance biological filtration and water quality in both freshwater and saltwater aquariums. This 500ml water conditioner accelerates organic waste breakdown, reduces harmful compounds like ammonia and phosphates, 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 tanks.

Specifications

ASIN	B001DKSG9S
Allergen Information	Sulphites Free
Best Sellers Rank	#6,413 in Pet Supplies ( See Top 100 in Pet Supplies ) #81 in Fish Medication & Health Supplies
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,412)
Global Trade Identification Number	00810086012206
Included Components	MicroBacter7
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	454 g
Liquid Volume	500 Milliliters
Manufacturer	Brightwell Aquatics
Manufacturer Part Number	BAC500
Model Number	BAC500
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Fish
UPC	611102132522 810086012206 787461534205
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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€ 80.11

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.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

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

2 weeks ago

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