Four men have been charged with violent disorder following Friday's fight in St Peter Port.
Matthew Banford and Rene Johns from Guernsey and Steven Hatton from Sunderland have been released on bail but islander Billy Truffit was remanded in custody.
One person remains in a stable condition at Princess Elizabeth Hospital.
The police are still looking to speak to anyone who witnessed the brawl and is yet to give a statement.
The authorities are asking people to stop sharing 'violent' videos of the fight on social media:
"These videos feature a particularly violent incident that many people will not want to see.
"As such, we'd like to ask the community to now stop sharing them. We have copies and they are being used as evidence so there is no need for them to be shared further.
The police say they have received the full cooperation of the Harbour Lights pub with their investigation.
They concluded their enquiries at the venue at around 8:30pm on Friday.
Liberation Group, which runs the pub, says it re-opened on Saturday as normal.
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