Edit: sorry guys, but the software sucks! So, just some links to pictures. Hope that works...
So. Not finished the very work intensive raising of the very small fry, but let me briefly summarize things:
There are 1,1 of the in total 4 Akysis that started spawning (note the blue belly of the female).
This is the breeding tank. Note the pump and the two boxes (one with gravel, one with a 4-mm net. This is absolutly necessary because otherwise the adults will get every single egg!!! They spwan either in the strong current of the pump or directly above the bravle bed.
The eggs are very small (~0.6-0.7 mm). Maximum number was 60 in one night, while I think that only one part of the eggs reaches the save boxes, while the other part is eaten by the adults.
The eggs are really as blue as the belly of the females.
Freshly hatched (after 3 days, 24°):
... after 1 day:
... 2 days...
... 5 days (note that there is still some bluish yolk, while they already take micro worms and sfreshly hatched Artemia)...
... one week...
... day 8 and 9...
... day 10 and 11 (note that difference in size!)...
To be continued...
June 13, 2011
Super cool and brilliant photos too, great to see you around again Frank! Ingenious breeding-tank design - presumably you just lift out the boxes once you see eggs inside?
About the forum software, apologies and yes, one or two things could be vastly improved. Hope to do something about that soon.
May 28, 2009
Ingenious breeding-tank design - presumably you just lift out the boxes once you see eggs inside?
yes. This is the easy part of the story. Then things are getting complicated. Really a tough job raising that fry.
Sounds like they spray the eggs around and make no effort to conceal or stick them a-la Corydoras?
As I wrote in the first post, they spwan either in the strong current of the pump or directly above the gravel bed. So, neither spraying nor sticking. It is more "targeting"
BTW: no chance for a video of that. First it is at night, second it is realy, really fast. I could give it a try at the weekend stitting in front of the tank with the cam ready... the whole night.
September 15, 2008
June 13, 2011
June 13, 2011
May 2, 2012
I was able to finally raise ca. 150 Akysis maculipinnis, with some of them already >30 mm now (and ready for disposal...) .
Anyway, I am still asking why Akysis should produce such colorful eggs!? For the adults this doesn't make any sense, because Akysis are almost blind. So no attraction using bluish bellies or something like that. One thing is that they were caught in a river rich of Cryptocoryne spp., which can be of bluish or violet color. So maybe a camouflage of the eggs?
Any suggestions from your side?
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