The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. Unlimited number of subscribers per channel A new window will come up. Enter your channel name and bio. (See the character limits above.) Click “Create.” Write your hashtags in the language of your target audience. Don’t publish new content at nighttime. Since not all users disable notifications for the night, you risk inadvertently disturbing them.
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