Need help with serious algae

[Gunner68]

hi all can anyone help with advice on how to get rid of a lot of slimy algae. It's clogging my pump and also restricting the growth of my plants. I've tried just leaving it but is causing havoc now. I've been told by an aquarium stockist to use clover leaf . Will this be safe for my fish? I have a couple of comits a shubumkin 5 orfe and 4 koi. I love my pond but getting really disheartend how awful the pond looks . I know it's the phosphate in the water but don't know how to get rid of it . Please help

 

[sissy]

Colleen a couple of years ago mentioned grasses and i put them in my filters and waterfall pond and they really do great at sucking up stuff .But there roots need trimmed often .Best way to remove it is by hand and probably the best way

 

[Meyer Jordan]

Use Phos-Out.