HYDRA LIQUID BLUE DYE 500ml treats UpTo 62,500 litres For
HYDRA LIQUID BLUE DYE 500ml treats UpTo 62,500 litres For Water Features and Fountains (Indoor and Outdoor)
From the brand
Hydra Best Garden Line
What does Hydra do?
We manufacture household cleaning products, Garden & pond treatments, and Fuel Additives.
Do you make your own products?
Yes, we manufacture all our own products.
Where is Hydra International based?
We are based in Milton Keynes, England,
| Dimensions: | 22.6 x 11 x 7.1 cm; 0.5 Grams |
| Model: | HYD61087 |
| Part: | HYD61087 |
| Manufacture: | Hydra International Ltd |
| Dimensions: | 22.6 x 11 x 7.1 cm; 0.5 Grams |
Used in a small garden water feature. Adds a nice colour to the reservoir coulour is not strong enough to colour fountain. Love the fact that it’s ok for fish and wildlife.
Wow – this is seriously good stuff! Great price – arrived within 24 hours – and so easy to use. Honestly you don’t need much either to turn the pond water a beautiful blue … we put one desert spoonful into our water feature and it’s made a huge difference. Just one tip: wear gloves when handling the bottle/liquid, because it does stain!!
We are delighted with it and will be ordering again. Thank you …
I think I needed another 250ml. But boy what an instant difference. Goldfish appear unfased & are happily swimming around. But tried every green/algae clear there is. In the end gave up & bought the dye. So far so good
I pierced a small hole in the foil top, and used no more than 30 drops total for my pond – probably around 10ml at a guess. You can see the massive difference in the photos. If I’d used much more, I don’t think I’d be able to see the fish. This is the black dye.
Quick delivery and after cleaning the water feature out and filling with clean water I then put the required amount in (which wasn’t much) – the water became a nice fresh blue colour which lasted 4 months before the time came to turn off for the winter months.
Makes the water feature look a lot better.
How does this stop algae? By cutting it off from the red spectrum of the sun. No sun no growth it’s that simple. I have a 9w UVC in my filter that barely dented the green water algae in my pond and I use Envii blanket weed treatment weekly to little effect except stemming the tide. I’d considered building shelter for shade etc but this is basically a blue gel filter over the sun. Only UV light will pass and after 24 hours water is clearing and algae is actually dying quicker than it grows. Ideally you use this in spring but even in July in a hot day it has halted algae growth in its tracks. The simplest solution is often the best!