The other two reefs established in waters off the Redlands last year are the Harry Atkinson Artificial Reef, west of North Stradbroke Island, and the West Peel Island Reef.

The East Coochiemudlo Artifical Reef was one of six the State Government promised in a $2million election commitment in 2009 in a bid to appease recreational anglers after 16 per cent of the bay was turned into marine park zones.

Environment Minister Kate Jones said 800kg of the concrete balls had been dumped over the side of a barge near Coochie in calm waters on Wednesday.

She said they would provide the perfect habitat for fish recreational fishers around Coochie liked to catch.

"The completion of this artificial reef provides new opportunities for mum and dad fishers to drop a line with their kids in the bay," Ms Jones said.

"Our government is committed to providing sustainable recreational fishing opportunities in South East Queensland.

"Recreational fishing in the bay has been tough since the floods so the completion of this new reef in healthy waters near Coochie is good news for local fishers," Ms Jones said.

Member for Capalaba Michael Choi said the completion of the reef was good news for local families who liked fishing.

"This is a terrific opportunity for locals and visitors to enjoy sustainable recreational fishing during the Easter holidays," he said.

Cleveland MP Mark Robinson refuted conservationists' claims that the reef balls were death traps for fish.

"These artificial reefs are good, not bad, even though they are not fair compensation for the loss of recreational fishing green zones," Mr Robinson said.

Ms Jones said local volunteers and organisations including the Queensland Game Fishing Association, Sunfish, Ecofishers and the Austra lian Underwater Federation had helped the government plan the reefs.

She said the remaining three artificial reefs at Wild Banks, North Moreton Island and South Stradbroke Island, would be completed by June.