Porter
Is this the article that you are talking about?
http://spo.nwr.noaa.gov/mfr612/mfr6121.pdf
John
Aquazoa wrote:Hey Paul,
My congratulations to you on your success with completing the debelius life cycle...You're one up on me there.
For what it's worth back when I was raising peppermints I soon found a real need for a dedicated growout system especially as I was dealing with some 200+ postlarvae. The first time I raised them in 2003 I got nearly 80 and put them all in a 10 gallon and every time one tried to molt it was cannibalized by all the rest.
Eventually I created a system with stainless steel shelves (like those used in hotel banquets) with shallow plastic storage trays for growout. I even went so far as to make hundreds of plastic cups with squares cut out on their sides and wrapped with windowscreen for each individual shrimp. The problem with that was that the water in the cups would get stagnant and fetid. Also the small space each shrimp was in inhibited growth from my observation.
Larger screened partitions would have been the solution there.
If you ever get a chance to check out a wonderful article about Homarid Lobster Hatcheries by Nicosia and Lavalli (51 pages), it shows diagrams of growout stackable trays for lobsters in a Scottish hatchery that is much like mine. A really cool feature of that system is a siphon feature that flushes the trays with new water periodically keeping the lobsters' compartment water freshened. Interestingly peppermint rearing is very nearly identical to lobster culture.
Now I know none of us could hope to have that scale of growout with postlarval debelius (if only!), but tiny postlarval shrimp are extremely delicate and do indeed tend to just disappear in regular aquaria. What with all the work put into raising them, I make sure they are grown out individually in meticulously screened safe spaces, fed well, with no possibility of cannibalism.
Porter Betts
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