The only structure in my pond currently is about 4 pallets that I sank when I put the minnows in 2 years ago. I attached solo cups to the bottoms, thinking that would create little caves for the FHM to build their nests in. I was worried they would come loose and float up but in almost 2 years I haven't seen a single floating cup.

I plan to feed pellets but I don't have a huge budget to spend on fish food so probably not 20lbs a day or anything crazy like that. Seems like the HBG and HSB will benefit a lot from feeding though so I will definitely feed what I can.