[sabrina]

We have 2 large solar pannels on the shed roof which runs our filter.

[Penninehillbilly]

The straw idea has always puzzled me, all I can think of is there is weedkiller residue in there, which is enough to kill minute organisms, but not enough for plants etc?

[doganjo]

The straw idea has always puzzled me, all I can think of is there is weedkiller residue in there, which is enough to kill minute organisms, but not enough for plants etc?

When barley straw begins to decompose, it releases chemicals into the water that stunt the growth of algae. Nothing to do with any added chemicals

[Fleecewife]

We have 2 large solar pannels on the shed roof which runs our filter.

That sounds an excellent idea