You can't get a specific colour. You just have to buy a Magic Bean at the Seed Cart and hope its blue...Sorry but it doesn't work that way.
No, there is no moshling on Moshi Monsters that is attracted by three Magic Bean seeds.
I think that there is only one code to get a certain moshling.
a yellow magic bean is a flower you plant!
you need two red magic beans and one blue magic bean
you do a poo idiot
To get peppy red moon yellow magic bean blue moon
You can get a Magic Bean seed, a Magic mirror.
white fang
just grow a blue love Berrie pink or purple magic bean and a yellow love Berrie and add me on moshi monsters I'm benabdul12345
A Black magic on moshi monsters is a black magic bean flower; so if you buy a magic bean flower and it growns into the colour black.
sooki-yaki
To get honey you need to plant: Any magic bean A yellow love berry and a blue apple snap