Algae bloom: Ridding it ... non toxic formulas? We had a waterscape installed ... three large boulders near holes drilled...

We had a waterscape installed ... three large boulders near holes drilled through where the water bubbles out and recycle through a massive holding area.

We have an algae bloom that I blast bad with water, but a couple of days subsequently ... its back with a vengence.

We hold cats who love to drink the water ... I can't patrol this ... and keep them from doing this.

Our local nursery said to use a hat of bleach ...but I am afraid that it might sicken our cats.

Is there any non-toxic product out there that will gun down off the bloom and yet be not dangerous for the animals?

Thanks for you input ...
Answers:    You can natural additives that will attack the Algae, and these are fine for fish, pets etc. There are quite a few types of Algae, including Blanket Weed, though it sounds as if you may not hold this problem type - it produces masses of clumping thin filament.

To prevent it from flourishing, ensure that run-off from surrounding soil is stopped or minimised, as Algae needs 2 things in directive to grow - nutrients and light. If you can minimise the light, this will give a hand too. Consider what shade could be provided, from water lilies, or nearby structures etc.

I'd ask around at adjectives nurseries, to see what products that they have. I'm in the UK, and the products I enjoy are locally produced natural products.

Otherwise, a UV light filter will verbs Algae, so this could be a potential solution for you too.

Hope this helps. Good luck! Rob
Actually , our drinking water have clorine in it to kill algae and microbes and a cap full of bleach shouldn't hurt anything drinking from it. There are also these (fish,snails)? that are called "algae eaters" that folks put in aquariums. So ya might go to a pet store that specializes within aquatic pets and see what they recommend