I'm sure babies could use the pool, it's not a big pool but obviously you would have to keep an eye out for the children. However I suggest that you contact the hotel just to be on the safe side.
Of course, but I'm assuming you've got all the necessary bits and pieces that babies will need to enjoy it- floatations aids in particular.
We had 3 children. Ages 6,9,10 the youngest child we saw was 3. Worth calling the hotel
It should be no problem, but I'd keep a close watch - there is no specific children's pool.
Get an answer from Scotlands Spa Hotel staff and past guests.