It was announced on Friday that two people had died at the festival site at Strathallan Castle in Perthshire before any of the acts had taken to the stage.
Police are not treating the deaths of 17-year-olds Peter McCallum, from Lochgilphead in Argyll, and Megan Bell, from Sunderland, as suspicious but at the time said they were looking at the possibility they were drug-related.
The family of Mr McCallum have paid tribute to the “kind and caring brother and son”.
They added: “He was a talented singer who had ambitions to become an architect.
“We hope that people, especially the younger members of society, learn a lesson from Peter’s death and that they don’t put their families through the devastation we are experiencing just now.
“We ask that media respect our privacy at this time and that we are left to grieve in peace.”
In a statement, Miss Bell’s family said: “We are devastated at the tragic loss of our wonderful daughter Megan.
“Her death leaves an irreplaceable gap in our lives and she will be so sadly missed by all her family and friends.
“We would also like to thank everyone for the overwhelming number of flowers, cards and condolences sent to us as this very sad time.
“We would respectively ask that we are now left alone to come to terms with our grief.”
A report has been sent to the procurator fiscal.