Oase Pond Block - 8 lb Pond Cleaner
Treats 2.6 Million Gallons For 2 Months
Oase's Pond Block is an all natural, non-chemical approach to reducing sludge, improving water quality and clarity in large ponds, lakes and dugouts. The Pond Block contains several different strains of beneficial bacteria and enzymes that are specialized to break down pond muck and organic sediments. The unique design of the block allows these beneficial bacteria to be slowly released providing a long lasting treatment that works for 60 days.
Oase's 8 lb Pond Block is the largest available on the market, 60% bigger than the competition, treating a whopping 8 acre feet (2.6 million gallons). It will treat a 1 acre pond that averages 8' deep for 60 days.

As organic debris such as leaves, twigs, grass clippings and fish waste settle at the bottom of your pond, they gradually accumulate into a layer of muck / sludge. As this muck layer increases over time, it begins to reduce the water quality and clarity of your pond as it slowly releases nutrients into the water. These nutrients cause excessive weed growth, foul odours, cloudy water and algae blooms.
By reducing excess nutrients and muck from your pond, Pond Block reduces pond odors, helps slow weed and algae growth and keeps your pond water clear and balanced.
Features:
Safe and Environmentally Friendly
Fish, Plant & Wildlife Friendly
Oase's Pond Block is a completely natural product. When used in accordance with label directions it is completely safe for your fish, plants, pets and pond wildlife.
How To Apply:
Oase's Pond Block can be placed on the bottom of your pond, however, it is most effective when placed in an area where there is moving water or slight current. Ideally it can be suspended from a dock or large floating fountain, or placed on the bottom of the pond near a sub surface aeration diffuser.
If placing the Pond Block on the bottom of the pond, try to avoid areas with deep sludge, as the effectiveness could be reduced if buried deep in the layer of sediment..
For highly eutrophic ponds that have high nutrient loads causing excessive weed growth, algae blooms and have a thick sludge layer you can apply more than the recommended dosage.
Carbon 'aka' activated charcoal helps remove tannins that cause tea coloured pond water. It also removes dissolved organics, odours, chlorine and chloramines from the water as well.
Carbon 'aka' activated charcoal helps remove tannins that cause tea coloured pond water. It also removes dissolved organics, odours, chlorine and chloramines from the water as well.