SPSEMPIRE
New member
Yep, they are regularly imported from maricultured farms.
PE and color on undata
- Thread starter lcs
- Start date
Yep, they are regularly imported from maricultured farms.
SPSEMPIRE
New member
It was outgrown!
Allsps40--you bulbls look 10kish--if so I'd say yours would glow with 14-20/actinics
That is some nice looking corals in there!
lcs
It's Spring!!!!!!!
Some improvement
Some improvement
I moved the frag on the 3rd and by the next day, the polyps had just started to poke through. I wish I had a picture of what it looked like before I moved it . . .
After one day . . .
Further away . . .
FTS. Excuse the mess, I fragged a couple rics and I'm waiting for them to attach!
As you can see, the highest real estate is taken. The frag is now about 16" from the light. Close enough for it to color up? Only time will tell I suppose.
Some improvement
I moved the frag on the 3rd and by the next day, the polyps had just started to poke through. I wish I had a picture of what it looked like before I moved it . . .
After one day . . .
Further away . . .
FTS. Excuse the mess, I fragged a couple rics and I'm waiting for them to attach!
As you can see, the highest real estate is taken. The frag is now about 16" from the light. Close enough for it to color up? Only time will tell I suppose.
chem-e
Active member
I have an undata that looks similar to psteeleb's pic and it's under moderate light and flow. My undata has been through slow growth periods and little PE periods as well. The low PE periods were triggered from low/unstable alk and once this was resolved my undata was much happier. Fortunately, the only negative effect of the low PE was growth. I felt that during this time, the coral was stunted in growth and after the alk issue was resolved, the growth returned. If you haven't already, I'd suggest comparing your alk results with another tester (ie LFS).
According to this article in Advanced Aquarist, regarding M. Undata, "maximum photosynthesis occurs at a PAR value of ~200 µmol·m²·sec. Increasing light intensity above this point is counter-productive as photoinhibition occurs". The article also has a graph indicating the "blue-green fluorescent pigment has an emission peak at ~490nm."
lcs
It's Spring!!!!!!!
I saw that article not too long ago and thought it was very interesting. It would indicate to me that it certainly doesn't need super high light and, in fact, it could be detrimental. However, anecdotally, it seems that people have had success with this under pretty hight light.
It would be interesting to see the PAR numbers for those that have good growth/color/PE.
It would be interesting to see the PAR numbers for those that have good growth/color/PE.
lcs
It's Spring!!!!!!!
Update . . .
Update . . .
It's been ten days and there has been improvement. The PE still isn't all the way back, but it's much better. And I'm pretty sure I'm seeing some green start to come back. I'm only really noticing it under the actinics and there's no way I could get a picture of it. It's probably only my imagination, but I'm keeping my hopes up!
Update . . .
It's been ten days and there has been improvement. The PE still isn't all the way back, but it's much better. And I'm pretty sure I'm seeing some green start to come back. I'm only really noticing it under the actinics and there's no way I could get a picture of it. It's probably only my imagination, but I'm keeping my hopes up!
