Check the listing for details. Ecological Laboratories Microbe-Lift Professional Blend Liquid (PBL) 1gal. Condition: New. Listed at 49.50 USD. KEEPS PONDS & LAKES CLEAN & CLEARFOR PROFESSIONAL USE ONLYMICROBE-LIFT/Professional Blend Liquid is a blend of microbes that contain specially formulated strains of bacteria manufactured for use by landscape, irrigation & pond professionals.The microbes in our Professional Blend will help do the following:PondsKeeps your ponds clean & clearReduces ammonia nitrogen levelsSeeds and maintains biological filtersRemains effective over a wide range of pH conditionsReduces buildup of bird droppings, fish feed, and dead leavesSignificantly reduces noxious odors caused by dead algae, fish fecal matter and urineImproves dissolved oxygen levelsDissolves away organic sedimentFishBiologically supports a healthy immune systemReduces environmental stressPromotes rapid fish growthAids in respiration and gas exchangeOxidizes both ammonia and nitrite, also reduces nitrateBiodegrades uneaten foodHelps when fish load exceeds normal guidelinesPlantsEnsures a healthy start and reduces transplant shockStimulates root formation and growthImproves tolerance to temperature fluctuationsEnhances the ability of plants to utilize light, water and nutrients by making the nutrients more bioavailableIncreases the luster of leaves and plantsImproves bloom retention