







🧬 Elevate your aquarium’s ecosystem with microbial precision!
Brightwell Aquatics MicroBacter7 is a scientifically formulated liquid bioculture containing a complex blend of aerobic and anaerobic bacteria plus natural enzymes. Designed for both saltwater and freshwater aquariums, it accelerates biological filtration by enhancing nitrification, denitrification, and organic waste breakdown. This results in rapid reduction of ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide, promoting crystal-clear water and a healthier aquatic environment. Made in the USA and veterinarian recommended, MicroBacter7 is ideal for established tanks seeking stable, optimized water quality.







| ASIN | B001DKSG9S |
| ASIN | B001DKSG9S |
| Allergen Information | Sulphites Free |
| Best Sellers Rank | #4,307 in Pet Supplies ( See Top 100 in Pet Supplies ) #46 in Aquarium Water Treatments |
| Brand Name | Brightwell Aquatics |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,423) |
| Date First Available | June 24, 2004 |
| Global Trade Identification Number | 00810086012206 |
| Included Components | MicroBacter7 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Type Name | Aquarium Bacteria |
| Item Weight | 1 Pounds |
| Item model number | BAC500 |
| Liquid Volume | 500 Milliliters |
| Manufacturer | Brightwell Aquatics |
| Manufacturer | Brightwell Aquatics |
| Manufacturer Part Number | BAC500 |
| Model Number | BAC500 |
| Product Dimensions | 2.5 x 2.5 x 6.75 inches; 1 Pounds |
| Target Species | Fish |
| UPC | 611102132522 810086012206 787461534205 |
| Unit Count | 1 Count |
T**R
Works as intended - 0 nitrates
This stuff works as intended. I will be honest, I thought this was a type of bacteria to boost bacteria biodiversity, and technically it is but it is mostly an enzyme to tackle nitrates in your tank. Ever since I've dosed this my tank has stayed at 0-.1 nitrates which can be good at times. But some nitrate can help foster coral growth. And ever since I've dosed this, my corals haven't grown as fast as they used to. So I would say this product is great for when your tank has been established and you want to "freeze" your tanks growth. But for new tanks I would stay away for awhile and instead buy brightwell clean which has the bacteria to broaden your bacteria biodiversity. The enzymes in this product eat at the nitrates and turn it into nitrogen gas which completely eliminates nitrates so if you want some nitrates, use this product with caution. But if i had done my research and used this product as intended, it did exactly what it was meant for.
H**I
Saved my fish
Excellent product. Thank you so much 🙏
K**E
Good product
This is helpful for keeping water clean and fish healthy.
C**I
Helps to stabilize newer aquariums quick!
Been struggling to get my nitrite values normalized using API Quick Start. It’s Day 3 of using MicroBacter7, and my values are in a safe range. Water is clear and my fish are happy. Great product, will continue to use this from now on! Highly recommend.
B**E
Recommended by Experts
I’ve had great success with Brightwell products so far and decided to try this to help with my battle against nitrates and phosphates. Using every professional trick in the book and I see this helping slowly to make minor differences. My water clarity was already good so I can’t see a difference there. Hopefully by the time I’m done with the full bottle I’ll be in a good place with my NO3 & PO4!
G**S
It’s a great product
Works great
L**E
Buy it! It’s my number 1 recommendation for fish keepers!
Literally everyone with an aquarium should own this! Without question better than seachem, fluval or any other bacteria seeding additive. I’m so glad I found this at a locally owned store when I needed it most. They also have one with starter bacteria. If I could give any aquarist one piece of advice it would be to buy this product!
M**.
Brightwell hits it out of the park.
Great stuff. I use it pretty regularly
H**O
com produtos deste genero , acabamos por nunca saber se funciona ou nao. nao vi nenhum tipo de mudanças no aquario ou nos corais...
A**O
con este tipo de productos nunca sabes si si funcionan, pero yo estava usando otro de otra marca para el ciclado de mi acuario y no avanzava mucho en un mes, y empeze a usar este y el ciclado estuvo listo 2 semanas despues, asi que yo creo que si esta bien
ع**ن
منتج في نظري ضعيف استخدمته للحوض البحري وهو بطىء
A**J
I have used it for bring my nitrifying bacteria population and it did what I have expected. I strongly recommend it and will keep on buying this product.
T**.
This product doesn’t work. Nor bacteria growth. I have been using it for a more than a month and nothing happened.
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