







🧬 Elevate your aquarium’s ecosystem — because your fish deserve the best!
Brightwell Aquatics MicroBacter7 is a scientifically formulated liquid bioculture containing a complex system of aerobic and anaerobic microbes plus natural enzymes. Designed for both freshwater and saltwater aquariums, it accelerates nitrification, denitrification, and organic waste breakdown, rapidly reducing harmful compounds like ammonia, nitrite, nitrate, phosphate, and hydrogen sulfide. This American-made, veterinarian-recommended solution enhances water clarity and biological filtration, stabilizing new setups and maintaining established tanks with superior water quality.







| ASIN | B001DKSG9S |
| ASIN | B001DKSG9S |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #4,025 in Pet Supplies ( See Top 100 in Pet Supplies ) #50 in Aquarium Water Treatments |
| Brand Name | Brightwell Aquatics |
| Country of Origin | United States |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,377) |
| Date First Available | June 24, 2004 |
| Date First Available | June 24, 2004 |
| Directions | Shake product well before using. Mix appropriate volume of MicrōBacter7 (see below) with 250-ml (~8 fl. oz.) of aquarium water in a clean container prior to addition to aquarium. If using a pipette to dispense MicrōBacter7 below water level of container or aquarium, be sure to thoroughly clean pipette with fresh water prior to placing tube back into MicrōBacter7 bottle; failure to do so will conta… |
| Included Components | MicroBacter7 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 2.5 x 2.5 x 6.75 inches |
| Item Package Dimensions L x W x H | 7.68 x 2.28 x 2.24 inches |
| Item Weight | 1 Pounds |
| Item model number | BAC500 |
| Item model number | BAC500 |
| Manufacturer | Brightwell Aquatics |
| Manufacturer | Brightwell Aquatics |
| Model Name | MicroBacter7 |
| Number of Items | 1 |
| Product Dimensions | 2.5 x 2.5 x 6.75 inches; 1 Pounds |
| Size | 500ml |
| Specific Uses for Product | fish |
| Style | Conditioner |
| Target Audience Keyword | fish |
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.
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.
J**S
good
as far as I know it works great , the fish are still alive as well as the plants in my ten-gal tank
R**U
Chicken or the egg?
Hard to say if this really did anything for my aquarium. I added this to a fairly new setup that was having some cloudiness and it eventually got clearer but results werent overnight. With that said, it's hard to say it's because I added this.
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!
J**R
Definitely buy!
Love this stuff. My fish are healthy, water is better quality, really happy I found this product!
K**1
wonderful product
I've had a 40 gallon frish water fish for over 25 years; constantly stuggling with green algae, dirty plants and algae invested items in the tank.Thi product eliminated the green algae; don't have to clean the plants, ect. every month at the monthly tank cleaning. tank is crystal clear all the ime. wonderful product.
D**S
the go too
i need to buy more it work
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.
Trustpilot
3 weeks ago
2 months ago