⚡ Cycle faster, thrive longer — your aquarium’s secret weapon!
Brightwell Aquatics MicroBacterStart XLF is a 125 ml, 15x concentrated live bacterial blend engineered to rapidly establish and maintain nitrifying bacteria in freshwater aquariums. Designed for new setups and high-density tanks, it accelerates the nitrogen cycle within 5-7 days, safely supports shrimp and other sensitive species, and aids recovery after cleaning or medication. Made in the USA with scientifically backed formulations, it ensures superior water quality and a stable aquatic environment.
| ASIN | B086Z6VTJW |
| Brand | Brightwell Aquatics |
| Country of Origin | USA |
| Generic Name | Water Conditioner |
| Included Components | MicroBacterStart XLF |
| Item Form | Liquid |
| Item Weight | 141 g |
| Item model number | BACSTARTXLF125 |
| Liquid Volume | 125 Millilitres |
| Manufacturer | Brightwell Aquatics |
| Net Quantity | 1 Count |
| Package Dimensions | 12.19 x 3.91 x 3.71 cm; 140.89 g |
| UPC | 810086019595 |
K**N
Absolute best way to start your tropical fish tank and have a perfect environment for fish survival. This stuff is a must and it works well.
M**A
Amazing product!! My tank was cycling for over a month and no changes, my ammonia 0ppm, nitrite super high and barely any nitrate, and I was using brightwell florin bacter 7 which is great as well but for some reason wasn’t working for this bigger tank. So I did some research and it said I could just substitute the florin Bacter for the micro bacter start XLF since they’re the same brand and are compatible (do your research) so I did and after 4 days dosing it my tank was ready and no nitrites at all!! It was like magic. I recommend this to start cycling the tank since it’s so strong and then continue after water changes with the Florin Bacter7 which is what I’m doing and it’s going great so far. Also keep both in the fridge. One think I must add is that for some reason I thought the bottle was going to be bigger because of the picture they display but it’s still enough because it’s concentrated and it’s only to use once in a while. I also use it when I have ammonia in my nano tank I dose it for 2-3 days and it boosts the nitrifying bacteria 🙌🏻 love it and will buy again and again.
B**N
Add with new fish. Works well
E**L
So I moved from a 29 gallon to a 75 gallon and I only brought one decoration and a sponge filter from the 29 gallon. I noticed after 2 days my ammonia was converting but I honestly can't tell if its because my bacteria survived or because this is a great product. Nonetheless, I'm sure it aided in the process. I kind of bought this cause DrTim's was out but I'm sure it actually does work. Also the cap had a little hole so every time I shook a little would come out. Didn't affect my water clarity or anything. For the price I think it's alright.
D**M
This worked great! Wonderful purchase for cycling my axolotl tank, and worked like a charm. Would recommend 👌🏼
