20 week old going off last bottlefeed of day

[Claireabelle81]

Was wondering if anyone might know why this is? He has 4 bottles of 8oz, first at about 7am, next about 11, 3rd at about 3 and the last one about 7pm, if he can last out that long! He takes the feed but is leaving about 3-4oz. I started weaning him at about 18 weeks because he has reflux, but it was improving. He only has about a tablespoon of puree each day so i wouldn't have thought that this was putting him off his feed. Don't really want him dropping a another feed as he's already gone from 35oz down to 32oz where hes dropped a bottle. Any ideas, i'm worried he's no longer going to sleep through the night, or start waking early!

[stinkypants]

is he too tired? is he napping enough?