I meant for light reflectivity. I will probably make a spacer with 5050 strips, but I just want to know if I need additional reflective material or if the inside of the bucket is fine as is.
Are the 5 gallon food-grade white buckets from the major home box store okay to use by themselves, if covered on the outside? I don't really want to paint the inside of the bucket wit the plant so close, fumes and all that. Is it okay to leave the bucket as is, or should I put mylar inside...