Hi. Need some help. Can i do load balancing via BGP between 2 ISP ?

Don’t seen any load balancing here. Split by network do nothing. I don’t know witch of my client in this time use 10mbits for announce it to 2 ISP
You didn’t provide enough info about your configuration.
Does your customer have dedicated ips? does he NAT his traffic?
There are many ways to do multihoming loadbalancing..
No NAT, real ip per customer.
Is that all?
then:
Balance the advertising of the ip
How tell me pls ? Some solution? IP addresses is static.
No one ?
Link to wiki example shows how to balance client download by advertising your prefixes with specific BGP attributes.
Simplest way how to balance upload is with policy routing which is also mentioned at the end of the article.
I told you. I don’t know which of my customers are active in current time. BGP announce minimum /24 network -smallest are drop. I can announce /32 but isp are drop it. So how i can balance ? In this case not 50/50 brandwith of channel is are 80/20
and a need balance load uniformly.
BGP is not designed for such tasks. You can do 80/20 balancing with NTH for upload traffic.
For download only way to control traffic is with prefix advertisements.