With Bitcoin down 30% in the past week, some crypto traders have taken to Telegram to โvoiceโ their feelings. Step-by-step tutorial on desktop: The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. 3How to create a Telegram channel? Invite up to 200 users from your contacts to join your channel
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