[Coral-List] Acropora transport and thermal shock
TDWYATT at aol.com
TDWYATT at aol.com
Thu Feb 3 22:18:18 EST 2005
Dion,
I am assuming you're dealing with cold shipping in the northern hemisphere
during the winter.
Ship overnight in a styrofoam container using your shipping method of choice,
however, in the coral reef hobby, shipping wet using a bag of 50% water/air
with the specimen rubber-banded to a styrofoam block (enough to float it upside
down) and using one of the disposable chemical heat packs wrapped in a piece
of newspaper and taped to the underside of the styrofoam lid of the shipping
container works well during the cold weather. For the heat ack, see products
like Super HotHands by HeatMax, in the USA at P O Box 1191, Dalton Georgia, USA
30722 1-800-432-8629 or check www.heatmax.com ) These heat packs are used
by outdoorsmen in the winter to keep their hands warm. Once activated, these
last 18 to 20 hours, and are enough to prevent the temp drop you may be seeing.
I have had packages of frags get accidentally diverted for 48 hours and had
pakages still arrive with warmth in the package. Good insulation and shipping
at the last minute for OVERNIGHT DELVERY seems to be close to 95% effective
for the US shippers like FedEx and UPS, but I cannot speak for outside the US
shiping areas. When I acclimitize incoming specimens, I open the bags and
place water and specimen in a pticher and begin to drip tank water into the
container with an airline (1/8th ID flexible lastic line) with a single not tied in
it so that it delivers around 400cc/hr (20 drops=1cc) I also place the
specimen container so that it can overflow into a drain ( so as to not add the
shipping water to the specimen tank), but done so that there is a bath around the
container to minimize temp loss (I imagine that another styrofoam container
would work as well though). This usually brings the specimen up to tank temp and
salinity/pH, etc within 3 to 4 hours unattended. Set an alarm clock and
check back in 4 to 6 hrs, specimens treated this way have very low loss rates
(less than 5% in my group, and not all those may have been acclimitization
problems), I have not lost ANY winter shipments this last two years using this
method.
This usually involves fewer than 10 colonies per box (or multiple stony coral
fragments) where overall package size is less than 80cmx40cmx40cm. You may
want to check with some of the hobby supply importers for their methods on
shipments to the west USA coast from Indonesia for larger quantities.
Hope this helps.
Tom
Tom Wyatt
tdwyatt at aol.com
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