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Mr Koizumi Active Lacto Bac | Probiotic Pond Water Treatment
Price range: £18.00 through £40.50
Support your fish from the inside out with Mr Koizumi Active Lacto Bac. This 100% natural, probiotic water treatment contains a high concentration of Lactic Acid Bacteria designed to suppress harmful pathogens and boost koi immunity. It effectively cleanses the digestive tract, improves skin quality, and assists in the breakdown of organic waste for a healthier, more vibrant pond environment.
- ⚖️ Under 2kg: £3.49
- ⚖️ 2kg – 5kg: £4.99
- ⚖️ 5kg – 10kg: £6.99
- ⚖️ 10kg – 20kg: £11.49
- ⚖️ 20kg + £14.99
Please check the cart for accurate rates on bulky items.
Prices are for UK Mainland Postage Only.
Mr Koizumi The Natural Way to Boost Koi Immunity
First of all, maintaining a healthy environment for your koi requires more than just filtration. In addition, Mr Koizumi Active Lacto Bac offers a natural, probiotic solution to keep your pond in top condition. This powerful formula contains a high concentration of beneficial Lactic Acid Bacteria.
Because these bacteria are “active,” they begin working the moment they enter your water. Consequently, they help to suppress harmful pathogens and support the natural defenses of your fish. Furthermore, this treatment is completely organic, making it a safe choice for all Pond Filtration Systems.
The Benefits of Active Lacto Bac for Your Koi
Specifically, how does this probiotic help? Lactic acid bacteria produce natural enzymes and organic acids. As a result, they create an environment where harmful “bad” bacteria, such as Aeromonas and Pseudomonas, struggle to survive.
In addition to protecting against disease, this treatment improves the digestion of your fish. Therefore, it acts as an internal and external Koi Health Supplement. Regular use leads to better growth, improved skin quality, and much more energetic fish.
Clearer Water with Probiotic Sludge Breakdown
Moreover, if you have organic waste building up in your pond, this product can help. It assists in the breakdown of proteins and fats that cause foam and bubbles on the surface. Consequently, your water will look cleaner and stay fresher for longer. This makes it an essential partner for your Pond Filter.
Safe and Easy for All Pond Systems
One of the best things about Mr Koizumi Active Lacto Bac is that it is 100% natural. Because it contains no harsh chemicals, it is safe for your fish, your plants, and your biological filter. In other words, you can use it throughout the year without worrying about side effects. Therefore, it is the perfect tool for any serious koi keeper.
Simple Steps to Apply Active Lacto Bac
In order to see the best results, consistency is very important. For this reason, follow these simple steps:
Preparation: First, shake the bottle well to mix the active cultures.
Maintenance Dose: Next, add 500ml per 10,000 litres of pond water once every two weeks.
Spring/Autumn Boost: Subsequently, use a double dose when the seasons change to help your koi adapt to temperature shifts.
Mixing: Then, simply pour the liquid evenly around the pond surface or near a Pond Pump.
| Size | 1 Litre, 5 Litres |
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| Condition | New |
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Mr Koizumi Active Lacto Bac | Probiotic Pond Water Treatment 








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