The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. 2How to set up a Telegram channel? (A step-by-step tutorial) With Bitcoin down 30% in the past week, some crypto traders have taken to Telegram to โvoiceโ their feelings. Your posting frequency depends on the topic of your channel. If you have a news channel, itโs OK to publish new content every day (or even every hour). For other industries, stick with 2-3 large posts a week. Clear
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