<!-- Empty field (Illegal field store.HeaderImageDesc) -->

(866) 444-0977

View Cart

TestimonialsContact UsHome

Hydra LT Extreme Bacteria

ImageDescriptionSKUPrice Each 
LT Extreme Cold Water Bacteria 1 Lb
LT Extreme Cold Water Bacteria 1 Lb 66730
LT Extreme Cold Water Bacteria 2 Lbs
LT Extreme Cold Water Bacteria 2 Lbs 66740
LT Extreme Cold Water Bacteria 11 LB
LT Extreme Cold Water Bacteria 11 LB 66750

LT Extreme Bacteria

Product Highlights


  • Created for low temperatures using Artic Strain of bacteria
  • Cold water bacteria boosts ponds natural bacteria level in autumn and winter
  • Brings water body back to natural balance
  • Clears green and cloudy water
  • Enzyme treatment starves algae of nutrients
  • Ideal for natural maintenance during cold months after using Hydra Crystal or Hydra Quartz



Most pond and lake bacteria cease working at temperatures below 50°F to 55°F. During the autumn and winter there is extreme nutrient loading in the pond as trees and plants in and around the pond are dropping organic material into the pond. Very often the water remains green and cloudy over winter. By spring, the water is saturated by excessive nutrients which are just waiting for sunlight to either turn your water green or produce blanket weed.

Hydra LT EXTREME BACTERIA (psychrophilic bacteria) are specially blended and tested to produce maximum results during colder temperatures.


Features and Benefits

  • Specially blended microbes for cold water in the early spring and autumn and winter
  • Highly effective at accelerating the digestion of organic material at the bottom of the pond
  • Excellent at reducing ammonia, nitrites, and excess nutrients that would otherwise cause poor water clarity
  • This fast acting live bacterial culture, boosts the water's natural nitrifying bacteria
  • Digests harmful ammonia, converting it to nitrite then harmless nitrate
  • Digests excess nutrients that would otherwise cause poor water quality and clarity
  • Ideal to boost natural bacteria during autumn and winter when most bacteria die off
  • Helps maintain a balanced water ecosystem free from algae and blanket weed
  • Reduces fish lethal ammonia levels
  • Breaks down and recovers organic material (accelerates the natural process)
  • Can be added direct to filter or to pond
  • Produces maximum results but still safe for fish and plants
  • Out-competes algae for nutrients required for their growth
  • Effective in both salt and fresh water

LT Extreme Bacteria Is Used By


  • Large koi and gold fish ponds
  • Decorative fish ponds
  • Zoo ponds and boundary water courses
  • Leisure fishing lakes and ponds that have become ecologically unbalanced
  • Intensive aquaculture operations like fish farms, angling clubs, etc.
  • Commercial fish farms for example eel, trout, tilapia and catfish producers
  • Salt water shellfish cultivars and net pen systems
  • Hatcheries for higher survival rates
  • Live stock holding tanks

How to Use
Switch off UV lights for 4 days when first adding LT EXTREME BACTERIA to system. If UV is part of filter system, then remove fuse for UV tube.



Usage Rates in Ponds
Size of Pond in Gallons 1st
Next 3 weeks
(once per week)
Maintenance once per month
66 to 264 gallon 3.5 oz 1.75 oz 1.75 oz
265 to 528 gallon 7 oz 3.5 oz 3.5 oz
529 to 1320 gallon 10.5 oz 5.25 oz 5.25 oz
1321 to 5280 gallon 14 oz 7 oz 7 oz
5281 to 13,200 gallon 17.5 oz 8.75 oz 8.75 oz



Usage Rates in Lakes

Either add directly into water body via a feeder stream (waterfall, pump return etc.), or spread the Hydra LT EXTREME BACTERIA around the surface of the lake. Apply once first week at first application rate, then use maintenance dose for next three weeks, then treat once per month at maintenance dose rate.
Size of Lake In Acres 1st
Next 3 weeks
(once per week)
Maintenance once per month
1 2 Lb 1 Lb 1 Lb

Ordering Information
To order online, use the form below or call 866-444-0977. 

Please Note: Your credit card statement will show your charge to either Climax, LLC or Climax Photo depending on your card. For more information about ordering from us, please see our Ordering page.