Sorry to break the news guys, but I found online: a video, it said:
"Angus McLaren is maturing faster than his magical mermaid co-stars grow their tails. The 20 yr old star has been in the film and industry for almost a decade, yesterday announced he would be leaving the Gold-Coast based H2o teen drama to focus on developing his 'grown up' in channel 7s comedy drama Packed To The Rafters"