Phosphate Reducing Filter Pad..koi

I think you had said you were having problems with algee, i was at the pet
store, which i have to go back to today, but they have this pad you i think
put with your filter (says for fresh,salt, ponds) and it reduces algee its
called Phosphate Reducing Filter Pad, I looked it up when i got home and
here is the info, I dont know if it helps with the same kind of algee you
were having but thought about you when i seen it.
Nik

Use this cut-to-fit filter pad in any type of filtration system to reduce
phosphate levels that result from decaying organic material, overfeeding,
overcrowding and lack of water changes. Pad is equipped with a
phosphate-grabbing resin to keep algae growth in check. Cut to fit all types
of filters for freshwater and sal****er aquariums and ponds