reef balls

[Zero]

Also i forgot try places where they make cement drain pipes. They might let you have the damaged ones. Also concrete demolitions. Might get some big slabs of old concrete no one wants.

Matt

[seasnake]

Good ideas Matt. Locally the police actually sank some cars so they could train on them ... maybe if you offered to do the cleaning and the sinking so they had a training spot ... And sinking ships as artificial reefs is done all the time with great success ... but I know here in Canada the environmental clean up of the item before sinking can be expensive. But like you say, anything would probably do ... a train car, drain pipes, small airplanes ...
One local shop owner, albeit kind of circumventing gov't regulations a little, started a little "park" at one of his favourite dive sites ... he sank a couple of fishing boats, one of those reef balls, a fake "treasure" chest, a bunch of odds and ends like dishes and stuff ... a dolls head floating on a stick (creepy) and even a 7 foot statue of a dolphin carved with a chainsaw out of a chunk of hemlock. Oh yeh, there is even a mock submarine made from pieces of metal drain pipe. The drawback is he sunk them in a location that is basically a mud hole, but the fish really seem to like everything ...

[lars2923]

I'm a member of the local Reef Research Team. Part of our mission is to
assist in the creation of artificial reefs. Cement is your best material to use.
It will last 100's of years. Do not use rubber, like tires.
Earlier post mention seeing a local cement company. Sometimes they will
need to get rid of cement (ie. bad pour) and could donate it (maybe a write off for them). Just make sure you have molds ready for them if they call last minute. Vary the size of the balls. Remember to document the coordiants of where they are placed and monitor them through out the year(s). Taking pictures of the site before, just after and throughout the year will help in
documenting your progress. Note the species that come around and live on, in and near the balls. Involve the local dive community as well. Once they see
that something they helped build can be exciting, they will help promote more
artificials in the area. Good luck...

[Finless]

Ah .... a slight misunderstanding over the title of the post ....... I was going to recommend some very effective cream.

Best wishes for the 'venture'.