Fishfry,
May be a plastic mesh will do? Look here:
http://www.dallasbonsai.com/store/drainage_mesh.html
The first picture shows the actual mesh size. That mesh is bendable but has good structural strength.
Home depot has the gutter leaf protector mesh that is metallic but it rusts under water. They have the same thing in plastic. The holes of both of them are about 1/4".
--Nikolay
May be a plastic mesh will do? Look here:
http://www.dallasbonsai.com/store/drainage_mesh.html
The first picture shows the actual mesh size. That mesh is bendable but has good structural strength.
Home depot has the gutter leaf protector mesh that is metallic but it rusts under water. They have the same thing in plastic. The holes of both of them are about 1/4".
--Nikolay
