Breeding rough shiner?
Posted 18 June 2013 - 04:04 PM
Posted 24 June 2013 - 08:13 AM
Posted 25 June 2013 - 09:58 AM
Posted 09 July 2013 - 07:21 PM
Along with this line, my colony of rainbow shiners breed the same way using the same method. In fact, they have been in breeding colors for 2 days straight!
Comparing rough shiners and rainbow shiners breeding behavior, the rough shiners are quite aggressive with the strongest male guarding the plate of gravel chasing away any males coming over the gravel; whereas the rainbow shiners, I don't see any single male attempting to stake out any of the territory over the gravel.
Either case, when they are in breeding frenzy, no matter what you attempt to do nearby, they seem to ignore it. Put my hand into the tank, they seem not to care other than to do the breeding first!
Posted 10 July 2013 - 08:54 AM
Posted 17 July 2013 - 09:27 PM
Both rough shiner and rainbow shiner eggs are hatch using the same method. The method I have successfully hatch the rainbow eggs is as follows:
(a) Pour out the eggs and sort of rinse it with the same water in the parent tank.
(b) Then put the eggs into a wide plastic square container with depth of perhaps 4 inch of water.
© Then put some elodea into the container.
(d) Then put an air stone in it. The aeration is not mild and yet is not strong.
(e) Then I leave the container with room light - meaning I did not cover the top to make it dark or dim.
Usually in about 36-48 hours, the eggs will hatch.
Also I usually feed the newly hatch tiny fry with egg yolk for the first 3 days. Then I feed them with golden pearl. I have successfully raised the rainbow fry to juvenille (eg. first rainbow batch of eggs).
This second batch of rainbow fry this week, I do the same with egg yolk and now I'm exclusively feeding them with NLS powder. This powder is very fine and is excellent.
I begin to suspect that perhaps the rough shiner is still young, thus infertile eggs causing it to fungus. Or perhaps due to the way rough shiner male staking his territory over the plate of gravel, so only a few fortunate males get to fertilize the female; whereas rainbow males all jump in together a bunch of females without much feud.
The one thing I notice about the color and size of the eggs. Rainbow shiner eggs are smaller and amber in color. Whereas rough shiner eggs are larger and orange in color - rough shiner eggs look prettier than rainbow eggs.
Posted 18 July 2013 - 09:47 AM
Posted 18 July 2013 - 02:12 PM
I agree with gerald that low O2 levels and subsequent egg mortality might also be to blame. It's hard to tell if you have any other filtration or sources of water turn-over that would oxygenate your tank. Despite your observations of a lone male proving to be the most dominant and keeping others at bay, I doubt low fertility is to blame. Many 'sneaker' males are still able to quickly swim in and fertilize the eggs. Even the dominant male should have enough of the good stuff to take care of all the eggs that are laid.
Try adding a powerhead in front of the nest and/or adding some anti-fungal meds (or salt even) to the water. Rainbows are one of the more easy species to breed and produce a lot of healthy eggs/fry as you know. But keep trying with your Rough's and keep records of everything that you're doing.
Posted 18 July 2013 - 02:57 PM
Posted 19 July 2013 - 04:19 PM
Posted 20 July 2013 - 12:44 PM
Posted 20 July 2013 - 12:52 PM
Posted 20 July 2013 - 09:36 PM
Posted 21 July 2013 - 11:08 AM
Starting today, I collect the eggs every few hours instead of waiting it till end of the day to collect as I did previously.
Edited by gerald, 21 July 2013 - 11:09 AM.
Posted 25 July 2013 - 09:02 PM
(1) Water changed 100% twice everyday.
(2) Have strong aeration with the airstone.
(3) Suck out any fungus eggs whenever is necessary.
(4) Blast water onto the eggs with turkey blaster a few times per day.
(5) No elodea or any other plant.
(6) I picked the eggs out from the breeding tanks every 2 hours - this is crucial.
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