My water clarity has not m been great and Iíve noticed that the nice thin layer of green velvet weed covering the sides and bottom are actually holding debris. Fish are feeing on said weed and disturbing the debris.

Iíve now got the pond circulating at approx 20k LPH and have given the sides a light brush down as far as I can reach.

I like the weed as it softens the look and also has benefits with parameters as it eats the nitrate. However the negative being that trapped detritus means the filtration isnít tackling it!

Any thoughts on treatment and occasional brushing down (itís a butyl liner so have concerns regarding damaging it).