marine aquaculture chris haynes. what is live rock? rock that is “alive” with organisms. rock...
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Live Rock AquacultureMarine Aquaculture
Chris Haynes
What is Live Rock?Rock that is “alive” with organisms.Rock itself isnt aliveUsed in saltwater aquaria.Reef tanks or FOWLR tanks.Named for where it came from.
3 kindsDead Rock- Rock that has no living organisms
attachedBase Rock- Has some coralline growthLive Rock- has more growth on it, Coralline
alga, corals, polyps. etc
Why is Live Rock needed?Provides the necessary
jumpstartMedium for nitrifying
bacteriaDenitrifying bacteriaGreat biological filter Huge amount of surface
area/ very porousMade of calcareous
skeletons
Why is Live Rock needed?Great at stabilizing PHIs a buffer by releasing
calcium carbonateGreat substrate to affix
coralsDecorative Hosts multitude of
organisms
CultureHarvested directlyAquaculture projects- suspended in water
column for as little as 8 months up to 5 years
Little workSeeding
Harvest by hand Damages pre-existing reef structureHammer to break off chunks of rockBanned in Florida Other countries starting to shift towards
aquaculture
AquacultureSuspended in water column by raftsLet sit on bottomRock is left up to 5 years before harvestAllows time for colonies of growthOnly maintenance is picking off unwanted
algaeSpecial seeding facilities – Walt Smith Fiji
6 month
s
1 year
18 months 2 years
It’s not ready yetStill have to remove dead matter
from transportContainer to completely cover rockSaltwater, thermometer at 76
degrees, powerheadScrub all dead matter off rock and
let it cure Frequent siphoning/water changesCould take a few days to a monthWhen water stops smelling you can
put into aquarium
Curing
Hitchhikers Can be a bad thingUnwanted
bristlewormsMantis shrimpSnailsAlgaeSponges Aiptasia
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