Is this weight gain excessive?

[lizzie_71]

I got my 'baby' boar Ruffle 3 months ago. When I got him he was 8 weeks old and 385 grammes. Now he is 5 months old and weighs a whopping 991g. Has he put on too much weight too fast, or is this normal?

 

[Guinea-wiggles]

Hi my little Albie is around 10 weeks old and he weighs 675grms and Alfie is 8 weeks and he weighs 380grms yet my girls who are 6 months old are 875grms and 775grms.
They all eat roughly the same amount.