I've seen people fashion feeders out of PVC pipe cut length wise and secured from rolling. I've also seen feeders made from aluminum house gutters.
I use a plastic dish that's about 1" in height. I only feed mine once a day. sometimes I find it dumped upside down but the feed is always gone so I know it got dumped when it was almost empty.
as far as mold goes on the top of the feed....a grayish film is normal. Fuzzy mold is not. Look towards the end of the big fermented feed thread and you'll see pictures. Everyone has that question. I agree, it looks gross and rotten.
I use a plastic dish that's about 1" in height. I only feed mine once a day. sometimes I find it dumped upside down but the feed is always gone so I know it got dumped when it was almost empty.
as far as mold goes on the top of the feed....a grayish film is normal. Fuzzy mold is not. Look towards the end of the big fermented feed thread and you'll see pictures. Everyone has that question. I agree, it looks gross and rotten.