not drinking enough

[Fcas]

DS is now 7mth eating a good 3 meals and snacks throughout the day, but has in the past week started refusing his formula milk.
He has been on Aptimal since birth. I am just concerned he is not getting enough fluids. I attempt to give him water and juice but he is only interested in wetting his mouth.
On an evening before bed was his best feed. He has gone from 6/7oz before bed to 2/3oz.
Any advice?

Is he eating more solids than he has been recently?
You might find this link useful.
www.babycentre.co.uk/baby/health/dehydration/

If you are still worried, I would take little one to the doctor.

Fcas if you can offer the bottle about an hour before offering solids. At this age it is far more important to get the milk into him than it is the solids. Try cutting out the snacks too if you think that will help him drink his formula.