Not sure what you mean by a streamer but UV rays attack flimsy plastics. Not sure they would hold up.

Fatheads prefer/inhabit shallow water. I think I would use pallets, rocks or logs close to shore and under the walkway or under the floats close to the bank. They will certainly graze on the moss and insect life that collects on the bottom of the floats.

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP Grandpa