Ranchu Wen Problems, Help!, how to indentify ranchu wen ? Options

[Donny041280]

My SVR have a small wen(8 SVR), i have treated with green water and high protein foods, but still little wen growth.
but i'm suspicious that my fish didn't have any gene for wen growth

- size : 2 inches max
- great body shape but poor wen growth (only tint of bumps)
- buy in Tanjungpinang at Rp. 15.000 (about SGD 2.20) the LFS owner said that it was imported from singapore

my question are..
1.does cheap ranchu's can still have good wen growth? like the ones from China (huge wen all over the head, Kinda babyface look
2. how much typical price for BBR from china and thai? (2 inches)
3.hikari lionhead, will it help?

thank you so muuuchh