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Here are a few photos of my Opae Ula tank from Feb 2008. Unfortunately, I no longer have this 2.5G tank with breeding population of almost 100. I had to give this up to a friend when I moved from Los Angeles to New York. I think the following items were important for the success of this tank:

1. I used several pieces of cured live rock to build a structure that provided plenty of dark interior space for the shrimp to hide. This mimics their natural habitat and I believe it was the key to getting them to breed.

2. I did regular water changes, 1/4 gallon every 4 weeks. I very carefully siphoned out water and shrimp poop from the bottom of the tank using air hose and a sturdy straw. Then I quickly poured in a fresh mix of full strength saltwater and fresh spring water, diluted to the proper salinity (which I forget). This mimics the periodic water changes in the anchialine pools in the wild. I think this also contributes to breeding.

3. I ran a small air pump with a stone diffuser full blast twice a day for 20 minutes on a timer. Once during the day when the lights were on, and once at night when they're off, to circulate the water, and simulate the flow of the tides. Contrary to what others say in this forum, my shrimp quickly acclimated to the water movement, swimming in and out of the bubbles, riding the current, not once going popcorn crazy.

4. I fed my shrimp bits of algae wafers and spirulina algae powder. I would break up the algae wafer and toss in 2 pieces, each about the size of a grain of rice, 2 times a week. After 30 minutes, I would suck out the remaining uneaten piece. Twice a week, I would also take a toothpick tip full of spirulina, mix it in a shot glass with ice cold spring water, and then pour the mix into the tank, so that there would be a column of spirulina suspended in the water, from the top to the bottom. In seconds, one shrimp would swim into the blue-green cloud and go crazy, triggering other shrimp to find the spirulina. In the last few months before moving, I stopped feeding altogether because there was so much green algae growing on the sides of the tank.

I plan on setting up a new 15 gallon opae ula tank here in NYC this spring, building upon the success I had with this tank in LA...















 

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They're currently listed on e-bay, just search for opae ula.
 

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Just too bad you have to get the 2nd day UPS shipping to get a live arrival. Wish they were more available on the mainland.
 

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Are these as easy to breed as other dwarf shrimp? I know they breed slower but do they just breed like RCS? And would you suggest them over RCS. I'm setting up a shrimp tank and I'm deciding what shrimp to get! I already have RCS and I was thinking about going with something different. I wan't my tank to be planted but i guess that'd be out if i did decide on Opae Ulas. How salty is the water? Because I really don't want to have to have a saltwater tank. Slightly brackish I might, but I just am not really into salt or monitoring it!. ;-)
 

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How salty is the water? Because I really don't want to have to have a saltwater tank. Slightly brackish I might, but I just am not really into salt or monitoring it!. ;-)
From slightly brackish to full ocean. But from what I've read, 1.008 to 1.012 is a good range for breeding. Nice thing is you can let the salinity swing a bit with these guys and not worry, as that is their natural environment anyways.

They are easy to breed from all the accounts I've read, just really slow. You aren't going to get a population explosion like RCS. If anything, they may require LESS care.

Problem is finding them at a decent price.
 
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I ordered some of these from ebay and they came in excellent. These guys are really hardy. I believe they are the same shrimp used in those terrible orbs sold as sealed bio-domes. They are very easy to care for and don't breed as often as rcs.
 

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I ordered some of these from ebay and they came in excellent. These guys are really hardy. I believe they are the same shrimp used in those terrible orbs sold as sealed bio-domes.
Did you order them during the winter? I was wondering how they would ship.

And you are correct about the orbs.
 

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Almost forgot about these shrimp. I remember being in grade school, one of my teachers had a small biosphere with 5 of those little guys in there.

I think I know what my next shrimp tank is going to house. I have a ton of old coral I can use.

First time going to salt! I have a nice empty finnex tank.
I'll try to find some in the spring!

-Gordon
 

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im curious to know if they can be kept in freshwater for long period of time without issue as well as breed there too.
 
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