enviiPond Klear Xtra – Strong Pond Clear Water Treatment, Naturally Clears Green Pond Water – Treats Up To 100,000 litres

I can only say I'm impressed. Pond was very green and I was sceptical anything would work until temperatures dropped.I changed filters and installed new UV bulb and after 2 treatments my koi pond is crystal clear.

I have used two complete doses of this product and on the whole it worked well and definitely cleared the water quickly. . I do have an extreme problem with blanket weed in this pond and I was hoping it would banish this too but it is still coming back. I will try another dose or if you can recommend something else I will try that too! Your service is excellent and the product has clear instructions and very easy to use.Many thanksCarolyn

This is good stuff and in my 2000 gallon koi pond it worked well. The pond was a sickly green and it is now much better.However you have to stick with it and be generous with the amount used . It says weekly , but I introduced a dose every 4 days.I was also very generous with the dosage. I probably overdosed, but it has not resulted in any problem with my fish and the pond does look clearer. I will probably use it regularly over the summer to keep the green water down

Our pond water has been exceptionally bad this year. We bought this pond clear product in a hope it would clear the algae but having treated the pond water as per the product instructions and there is zero change in water clarity. It's rather frustrating to see little if any improvement after six weeks of treatment.

This product is just Great, bought this product as my pond was really muddy/murky . (We decided to add a huge Lilly to our pond and that’s what made it really murky/muddy/clay water )I have a huge pond , 50,000 gallons of water . After the first use it took 5 days to see a small improvement, but that was good enough for me , so i added the second dose , really pleased with the pond so far. It’s taken 8 days and a real improvement is seen now . So I’ve ordered more of this product . It’s brilliant . My fish are so much happier now. They’re healthy and we’re seeing that they’ve had babies too .Definitely recommend this product . It’s a great price too .

I have waited over a year to review this product as I have waited for all permutations on my pond to play out.I have had a 5000 gallon ponds for several years and various pond before that. I have never had a problem with clarity or chemistry. PH always about 7.2. The pond is stocked with Koi and goldfish. I have a three bay filter with brushes, Alfagrog and foam. In addition I have a veg filter and 55 Watt Uv filter.Last year, my pond was not as clear as usual. A slight cloudiness and a definite 'tea' colour developing. Dissolved organic compounds I thought. The Envii product looked ideal.I added the bottle of Envii Pond Klear Xtra as directed and waited. I was amazed that all the 'dirt' in the filters disappeared within a day or so. However, the pond was no better and got more cloudy. The pond became murkier and I was starting to get problems with PH, ammonia and nitrite. PH was always 8.3 or higher, ammonia and nitrite was appearing in testing. I contacted the company who suggested a PH buffer product. My GH and KH levels were fine, so adding another expensive product did not seem a good idea.Before the Envii product was added, I would clean my brush bay every few weeks; always full of dead algae. Not any more. Nothing in it. UV filter all good. A jar test suggest no algae problem, but PH and chemistry are not good. It's as if my old filter bacteria has been turned off and replaced with something different.Since then I have added various potions, done loads of water changes, but nothing has improved. I can get passable nitrite and ammonia results by drastically cutting food and I can get some clarity by constantly adding fine fleece filter material to the last bay.I cannot prove in any way that the Evii product has caused problems, simply report my findings. However, I wish I had never used the product.

on stage one works really well should be even better after 2nd treatment

I have to say I didn't think this would work but it did eventually!I have quite a large pond which was thick green and i'd given up trying different things to fix it. I find calculating the amount of pond water and then the amount of treatment required quite difficult. I cleaned the pump and filters and added about a third of the bottle to a watering can and added to the pond. I then cleaned the pond filters every couple of days. I did this three times in total from one bottle of treatment and the water is now considerably clearer.My biggest bugbear with these bottles is the dosage contraption. I don't find it helpful at all in calculating how much you need. It also make it really difficult to get the stuff out of the bottle. I end up cutting the top off the bottle. Maybe that is easier for smaller ponds but I need to use quite a lot of treatment.Overall it worked for me but ponds still seem to be a bit hit and miss. I inherited mine with the house so i'm still figuring it out!