Yuma Project

[saturnkk]

After much consideration, it is my hypothesis that delicate/hard to find Yumas are much more vulnerable than are the more common brownish variety or the Florida type of Ricordea.

Why?!?

Hypothesis #2:

I believe that aside from obvious water quality, light intensity (which I don't think is as big a deal) and coral disputes, that the answer may in fact, lie with the type of SALT we use.

Understanding that colorful Yumas tend to sell faster thus they have less time to acclimate at the fish store prior to being moved again after a long flight(s) in a bag and also considering that because they sell faster, problems that they may have incurred but aren't yet noticeable may have already led to their inevitable demise there still seems to be another factor at work.

So, I would like to compile an exemplary list of Yumas that includes:

1. Color of Yuma
2. Size of Yuma
3. Type of Salt used in tank (include specific gravity)
4. Frequency of water changes (approx)
5. Duration that the Yuma survived is has survived
6. * Bonus * Whether the Yuma has reproduced in your tank


I believe that if enough people reply to this thread that we may be able to find some patterns or correlations that could prove useful...


Thanks!

 

[jcatblum]

SO you only want to know about really colorful highly "deisired" yumma's, or all yumma's???

 

[maxvan1]

Most decent LFS have an acclimatization period of 2 weeks or so. And most online store hold their fish+corals for a while also... So, if somthing is held for 2 weeks and sold in 3 days, as opposed to somthing also held for 2 weeks and sold in say, 8 days, the 5 day period isnt going to make a huge differnce IMO.

But,

I use Oceanic
I have the common greenish puple base color (many sizes ranging from pencil circumference to half dollar size)
Yes the reproduce
Water change (cant even remember the last time... not offen)
I run heavy carbon.


Also, another thing to keep in mind is that most, but not all, brown yumas will turn into somthing "colorful". And, somthing under 65k halides will look totally differnt then somthing under 20k+actinic. So, just as an FYI I run 250W 20k bulb halides.


I think another way you should do this is have 4 tanks set up, run the same skimmer on all of the, same lights, same everything, but differnt salt. Then take one or two ricordea from the same collony and see what the differnce is in 2-3 months. I really dont think it is the salt personaly, but the lights.

 

[saturnkk]

Thanks Max. Ideally, running 4 tanks would be great but I don't have the time, space or money to do that now.

Good variable find on Carbon (although I suspect that most run it from time to time or skim and change water heavily)...

How long have you had your green Yumas? How long before they reproduced?

Thanks!