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- From: dbs@hprnd.rose.hp.com (Dave Sheehy)
- Subject: Re: Mantis Blues
- Sender: news@hpchase.rose.hp.com (NetNews)
- Message-ID: <C1FCE6.2A6@hpchase.rose.hp.com>
- Date: Mon, 25 Jan 1993 19:20:29 GMT
- Distribution: na
- References: <1993Jan25.023944.22827@esrican.uucp>
- Organization: Hewlett-Packard
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- Lines: 43
-
- Brian Schwarz (schwarz@esrican.uucp) wrote:
- : My bigger problem, however, is this. I noticed - about week or
- : so ago - many small (approx 5-8mm long and .5-1mm wide) crustacean like
- : critters moving around on the live rock after the lights went out.
- :
- : Now I have this sick feeling that my mantis has left me with many
- : of it's youngin's. I'm not 100% sure on the mantis ID of these
- : small critters but they are somewhat similar in shape. They have
- : antenae and the tail/body is sort of curved, like that of a
- : lobster.
-
- Take heart! I strongly doubt that your mantis shrimp has left you any sort
- of living legacy. What you are describing sounds like a small type of
- crustacean (Gammarus sp. maybe?) which can often be found in not only reef
- tanks but traditional marine tanks as well. They are beneficial in several
- ways. Perhaps best of all they are detritus feeders so they are helping reduce
- the nutrient load in your reef. I find large numbers of them in the pre-filter
- whenever I rinse it. Secondly, they provide food for the other animals in
- the reef. As opposed to some of the other people on the net I believe in the
- "feed as little as possible" school of thought with regard to fish in a reef.
- Forcing the fish to forage for food among the "small critter" population helps
- reduce the nutrient load. It also provides a check on the small critter
- population (kind of like a real ecosystem ya know :-).
-
- : The disappointment of these realizations has led me to question
- : the time and money I've devoted to this hobby. Sure I have enjoyed every
- : minute, but does this mean I have to rid my tank of all the live rock
- : and start again?
-
- Most definitely not. A reef requires attention. Just keep at it and things
- will eventually settle down.
-
- : Is there any creature which will feed on these young mantis shrimps
- : (if thats what they are)?
-
- I don't know about this one. I would assume that when anything spawns in a
- reef tank most if not all of the spawn or larvae will be consumed by the
- resident filter feeders. I consider it unlikely that any larvae mantis shrimps
- would survive and grow up to the adult stage.
-
- : Brian
-
- Dave Sheehy
-