Brightwell Aquatics MicroBacter7 Complete Bioculture for Fish Tank or Aquarium - Populates Biological Filter Media for Saltwater and Freshwater Fish - Aquarium Water Treatments, 16.9 fl oz

I purchased this several years ago in order to jumpstart a tank after getting back into the hobby. I've tried several other formulations and this gets my tank seeded quicker than the rest for whatever reason. I usually do nano tanks with plants, fish-in cycle, no issues (several minor water changes during first couple of weeks). Honorable mention to the Seachem product but Brightwell's bacteria works for me every time.

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 monthat the monthly tank cleaning. tank is crystal clear all the ime. wonderful product.

Great stuff, it works.

Muy bien

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!

As advertised!! I recommend and will buy more from this brand!

This is a must if starting a new fish tank or doing water changes or adding fish helped cycle my tank fast and keeps the water super clear. If you have a tank you need this

Great product! I still haven't figured out why it happened as I have been doing the same routine on my freshwater aquarium for the past 8 years. I woke up one morning and my tank was so cloudy I could barely see my plants in the background. Tried multiple water changes, cleaned and replaced canister filters, tried a couple of other water "clarifier solutions" but 3 weeks later, still cloudy. Started using this stuff and 3 days later, voila! Beautiful, clear water. I'm now a frequent buyer.