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Live Rock Aquaculture

Live Rock Aquaculture. Marine Aquaculture Chris Haynes. What is Live Rock?. Rock that is “alive” with organisms. Rock itself isnt alive Used in saltwater aquaria. Reef tanks or FOWLR tanks. Named for where it came from. 3 kinds. Dead Rock- Rock that has no living organisms attached

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Live Rock Aquaculture

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  1. Live Rock Aquaculture Marine Aquaculture Chris Haynes

  2. What is Live Rock? • Rock that is “alive” with organisms. • Rock itself isnt alive • Used in saltwater aquaria. • Reef tanks or FOWLR tanks. • Named for where it came from.

  3. 3 kinds • Dead Rock- Rock that has no living organisms attached • Base Rock- Has some coralline growth • Live Rock- has more growth on it, Coralline alga, corals, polyps. etc

  4. Why is Live Rock needed? • Provides the necessary jumpstart • Medium for nitrifying bacteria • Denitrifying bacteria • Great biological filter • Huge amount of surface area/ very porous • Made of calcareous skeletons

  5. Why is Live Rock needed? • Great at stabilizing PH • Is a buffer by releasing calcium carbonate • Great substrate to affix corals • Decorative • Hosts multitude of organisms

  6. Culture • Harvested directly • Aquaculture projects- suspended in water column for as little as 8 months up to 5 years • Little work • Seeding

  7. Harvest by hand • Damages pre-existing reef structure • Hammer to break off chunks of rock • Banned in Florida • Other countries starting to shift towards aquaculture

  8. Aquaculture • Suspended in water column by rafts • Let sit on bottom • Rock is left up to 5 years before harvest • Allows time for colonies of growth • Only maintenance is picking off unwanted algae • Special seeding facilities – Walt Smith Fiji

  9. 6 months 1 year 18 months 2 years

  10. Curing • It’s not ready yet • Still have to remove dead matter from transport • Container to completely cover rock • Saltwater, thermometer at 76 degrees, powerhead • Scrub all dead matter off rock and let it cure • Frequent siphoning/water changes • Could take a few days to a month • When water stops smelling you can put into aquarium

  11. Hitchhikers • Can be a bad thing • Unwanted bristleworms • Mantis shrimp • Snails • Algae • Sponges • Aiptasia

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