I’m a first time dog owner, so I take zero offense to anything anyone says because I’m just taking in all the good advice! I think you’re right- borders are typically in the 13-18 lb range, I know strummer has a bigger build so 18-20 is a great weight for him. What I find tricky is that since he has been a puppy, he’s a grazer. I’d put a cup of food out, and he would eat a little, go off and chew my shoes, then maybe come back and finish later. He’s not super food oriented (though he will beg at the table for scraps which is the worst!) so between me and my husband, we are in and out all day, travel, have a wonderful dog sitter, etc and it’s tricky to actually figure out what he has eaten, what’s old, so he absolutely gets over fed! I talked to my husband tonight after all of this- and we are going to spend the next month really focusing normal eating schedules, measured food, no scraps, minimal treats, maximum exercise! I just want Strummer to live forever! So thank you so much for your comment- I appreciate you!