Envii Nitrate Klear – Natural Pond Nitrate Remover, Safe for All Fish & Wildlife, Treats 12,000 Litres of Pond Water

Has done e actky what it says it would do a d my pond is now well balanced and clear. Very easy to use.

This product has reduced the nitrate in our koi pond to a safe level.

Fish pond. Did the job

I have an 8000+ L koi pond. I have purchased this item two (possibly three) times now to try to keep the nitrate levels down in my koi pond.Candidly speaking, I haven't seen any noticeable difference. The levels of nitrate, with and without the Envil product remain almost identical.I have tried regular small doses as well as larger doses and no luck. I have followed, instruction-by-instruction, how to use the product so unless I have missed anything from the online video by the Envil rep, the product doesn't seem to be making any difference for me.Of course, I am aware that for many of the users of this product, it seems to have worked nicely which is great (and the reason I went for the product). It simply hasn't really worked for me.

My pond was very green. I tried everything and nothing worked. I used 3 treatments of this product and it was clear as a bell! The container has 5 treatments in it.

Just as the box says does the job

Used exactly as required and made no difference to nitrate readings (after 2 doses one week apart).

The product just works!