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How do sewellia really spawn?
Posted: Thu Jun 18, 2009 11:30 am
by cichlidmayhem
Hey gang,
How do sewellia really spawn? It seems that most people just see the fry show up but do people really know how they spawn? Do they spawn under rocks, in the gravel, or maybe in some fine leaved plants? Why I ask is mine are in a bare bottom tank with some flowerpots with notches cut out of them. There doing great and I don't want to change anything. Any thoughts on the subject?
Gary
Posted: Thu Jun 18, 2009 12:37 pm
by Mad Duff
From spawnings that have been seen it appears they carry out a kind of dance together, the male and female rise up into the water belly to belly fluttering their fins all the while.
Eggs and sperm are ejected at the same time which would indicate that they do this to help the eggs get carried downstream by the current in nature.
Posted: Sun Jun 21, 2009 7:00 pm
by farid
hi there,
i've even seen these moves in the tank if my 3,5cm small baby-lineolatas!!!
does anyone at what age they are ready for breeding??...
cheers
farid
Posted: Mon Jun 22, 2009 2:41 am
by ch.koenig
hi gary
there are few descriptions of the whole procedure, fotos none. some messages of parts of the procedure. this link is the most complete about lienolata, but in german or ...?russian!
@ mad duff: "dancing" is really the word that seems to be appropriate and they are "free-spawners"
http://ig-bssw.org/?p=537#more-537
or
http://www.bssw-online.org/bg/archives/337/
for S. sp "spotted" nothing similar is known to me, they are quite discrete.
details are known for gastromyzon (
scitulus/ctenocephalus and
auronigrus., Dickmann, 2001 identified as punctulatus/monticola) as I have the article now I'm going to make a summary one day. still: no pictures, but drawings (copyright!).
@ farid: there are mesures taken on females with eggs of some sewellia, but that does say nothing about the age of the specimen. we both have specimen older than a year only about 3.5 cm long. normally they should reach the age for reproduction within half a year. I'll try to collect the notices.
cheers charles
and finally as my sister-in-law would say: say it in english!
http://www.bssw-online.org/en/archives/337/
Posted: Mon Jun 22, 2009 7:08 am
by wasserscheu
I witnessed the spawning once too and described it somewhere here (attached to either MD or Jim's excellent describtions).
I took a bunch of pics and videos of them flirting for almost 3 hours, by the time the eggs were actually released, the battery was empty

but they may have been too small anyway to show on the pics.
I remeber, that after that long session the male stood up straight up and even a little backwards in some plants and he looked very much done with (exhausted)... I was impressed, "one" should learn from his entusiasm

Posted: Mon Jun 22, 2009 8:09 am
by Mad Duff
I think I remember you post Wolfram unfortunately I don't seem to be able to locate it, it certainly does seem to be a trait of the
Sewellia that they don't do anything in half measures and get suck into everything be it spawning, feeding or protecting their chosen area

Posted: Wed Jun 24, 2009 8:37 am
by wasserscheu
Found one post of mine, not much text though ... need to look for the videos that show them flirting... will take some time until I can post them...
http://forums.loaches.com/viewtopic.php?t=10559
here Jim's post, I have a bit more text there at the end
http://forums.loaches.com/viewtopic.php ... torder=asc