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Share photos/videos, journals and logs for your Opae ula tank setups for others to read.
 #7578  by Algae In Space
 07 Jun 2019 13:19
Opaeforms wrote: 07 Jun 2019 12:10 Just a few observations. In my last setup I never saw shrimp with such dark innards as in this setup... All the shrimp always have very dark stuff going through their digestive systems. Makes me wonder whether there was enough food in my last tank, or whether the algae is just different in this one and so looks darker once they eat it.

When I feed spirulina the poop gets dark. When I don't feed and they just eat regular algae it is light-colored. We've discussed it here. It could just mean that they now have a slightly different diet!? No worries I guess.
Opaeforms wrote: 07 Jun 2019 12:10 Also, when the shrimp are doing laps around the tank, because it's cylindrical, they can go round and round without any edges to stop them. I notice that 90% of the time, the ones that are doing laps are going clockwise. Almost never anticlockwise. Weird!

Ha! Please check out this post: SWIMMING BEHAVIOR and feel free to participate! You could also do the same with my questionnaire if you feel like it :blush: The Opae Ula Questionnaire

When I got my cylinder tank they used to race counterclockwise like crazy!!! This went on for some months. Now they don't do it that often anymore.
 #8262  by odin
 15 Aug 2019 15:00
Wahoo congratulations! That looks to be a good amount of eggs too! Let’s hope she keeps hold of them over the next 5 weeks.

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 #8266  by Opaeforms
 17 Aug 2019 09:19
Bit of extra info. Seems like 2 others will be berried very soon (lots of individual eggs are distinguishable inside them). Seems like the conditions have suddenly become good for breeding and now they're all going for it! Just over a month ago I moved the tank off the windowsill which gets full sun for part of the day, because it was getting too hot in the summer sun. They've been in a cool(ish) corner since then with a relatively weak artificial light. Temp stays betweens 20c to 27c. I will probably put them back on the windowsill after summer so I can view them better. It will be interesting to see if they continue to breed then.
 #8270  by odin
 17 Aug 2019 13:33
My tanks get no sunlight at all, just to throw that information into the mix.

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