i need to put my cat on a diet!

[soaccidentprone]

he is now 3 and is getting fatter and lazier by the day. we have 2 other cats who are just right (they are both girls) and are both a lot more active than him. they all get fed the same amount, a tin a day between them in 2 meals plus a small amount of bikkies.

any tips for getting a big fluffy cat to be more as active and to lose weight?
ta

thanks for the advice pg.

fat fluffy is a strange cat. he is a rescue cat. we got him when he was one.

he oddest habit is to jump in the bath, I have to put the plug in and some water so he can drink.

I caught him drinking my bedside water the other morning

I'll weigh him before tea and update later