PondWorx Pond Bacteria - Formulated For Large Ponds, Water Features And Safe For Koi - Orange 1 Gallon

My garden has a very large natural pond which unfortunately had a problem with biofilm. I used the full container of PondWorx Pond Bacteria and the following day the pond was much improved; a couple of days on and the pond has greatly improved and the water is clear. I can actually see the fish again, which by the way are unharmed. I would definitely recommend and will continue to use periodically or should the pond have another problem with biofilm. Depending on the size of your pond it could become expensive, however this works.

Brilliant stuff. Value for money and works a treat. You do need to use regularly to keep the effectiveness up. We have a large pond pool120k+ ltr

I'm not the one to write reviews, but I'm so happy with this product! For the first time in years I can finally see the bottom of my pond! I've done 2 weeks course and I will add final pics in a few weeks time. Highly recomend this product. I've spend so much money in the past trying other products but this one actually work. 10 out of 10!

I gave the required dosage for a water filled dog paddling pool for my three ducks, no difference after a week so i doubled up on the amount, still no difference. I gave up in the end and have gone back to changing the water once a fortnight, as thankfully the pool has a plughole..

Large bottle and a good price

it works

I followed instruction waited a month no change in water dried again using the remainder of the bottle still drastically muddy haven't seen the medium sized or smaller fish for ages just the 3lb Koi are visible the pond is quite large and has a natural clay base so this stuff may work on a plastic or rubber pond as they have no sediment in them unless a tree or other plant is overhanging.

Put it all in. 3 weeks later still the same, so did nothing. Will go back to the bio balls as they seem to work better.

My small koi pond was full of algae due to direct sunlight for more than 10 hours a day. Despite 2 UV lamps algae still cover 70% of the sides and base. 2 weeks after applying Pondworx the base and sides began to clear up to 40% and the aeration pumps also became more vigorous! Bought second bottle already!

I've used this product for a couple of years and have been pleased with the results. It's easy to measure and disburses easily. It has kept our pond water clear even though I'm not great at algae control. This is not an algaecide.

Efficace pour éliminer les algues filamenteuses

Very good

A waste of money