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1 24th October 16:02
rmc
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Posts: 1
Default how long before severum eggs hatch?


--
If the parents are still guarding an area, the chances are you already
have fry, and lots of them. They would be extremely hard to see
unless they move. Give it a few more days and the fry should start to
become adventurous and move around.

Mark
http://www.cichliddomain.com
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2 24th October 16:29
mephistopheles
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Default how long before severum eggs hatch? (large)


Actually, it was discovered in the last several years that Severums are,
in fact, larvophile mouthbrooders. (See "American Cichlids II: Large
Cichlids", by Wolfgang Staeck and Horst Linke, p. 123 (1995)). They had
been previously assumed to be pure substrate spawners. Hence, I would
surmise that the "wrigglers", as Jim calls them, are in the mouths of one
of the parents. I believe they would be released as soon as they become
free swimming.

Meph
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3 24th October 16:29
jim brown
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Default how long before severum eggs hatch? (mouthbrooding mouthbrooder fish)


I don't have that reference material, so I can't read up further at this
time.
I do remember reading several articles about this mouthbrooding behaviour,
with the end presumption being that this fish is possibly in the
transitional stage between substrate spawner and mouthbrooder.
Of the numerous spawns of them I have witnessed, read about, and discussed
over the years, not one has supported that mouthbrooding behaviour. I am
not saying it doesn't happen, just that it may be a bit of a 'lost art' in
aquarium raised fish.
The original poster may give us more insight in how that particular pair is
doing.

Jim
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4 24th October 16:52
rmc
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Posts: 1
Default how long before severum eggs hatch? (severum orange heros fish sp.)


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There are a number of Severum-type fish in the Heros genus. Heros
Appendiculatus has bright orange fins and is often times mistaken for
a Severum. There is a new Severum featured on the cover of the latest
TFH magazine. I believe they call it sp. Red Shoulder. I have a wild
pair and they are a very nice looking fish.

Mark
http://www.cichliddomain.com
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5 24th October 16:52
ukyou kuonji
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Posts: 1
Default how long before severum eggs hatch?


any clue what type mine are ?
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6 24th October 16:52
rmc
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Posts: 1
Default how long before severum eggs hatch?


--
The links to your photos did not work.

Mark
http://www.cichliddomain.com
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7 24th October 16:52
mephistopheles
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Default how long before severum eggs hatch? (mouthbrooding severum fish)


I have had many severum spawns and have seen nothing to rule it out OR
in. I think it is the kind of thing that is harder to observe than you
would expect--which is why it took so long to discover. Did you see
anything that would tend to rule it out? E.g. a mass of "wrigglers" in a
pit for an extended period? (By the way, my text says the phenomenon was
discovered by very close observation of fish in aquarium conditions.)
This whole thread would seem to support the mouthbrooding hypothesis to
the extent that the eggs/fry seem to be mysteriously "missing". Meph
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8 24th October 16:53
ukyou kuonji
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Posts: 1
Default how long before severum eggs hatch?


whoops, it should be PICTxx.JPG instead of PICxx.JPG. thanks !
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9 24th October 16:53
ukyou kuonji
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Posts: 1
Default how long before severum eggs hatch?


the fry is there ! and the parents are SO protective now !
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