Aquabacs' Cadlights Artisan 50 Azooxanthellae Tank build

Glad you are having fun at my expense ;)

Try to get some pics up later of the colony I got in from Ian at Reef Odyssey. First time doing business with him and will definitely do again in the future. Coral arrived in great shape, packed well, and at the perfect temperature on tha second day of Summer.
 
Aquabacs said:
Glad you are having fun at my expense ;)

Try to get some pics up later of the colony I got in from Ian at Reef Odyssey. First time doing business with him and will definitely do again in the future. Coral arrived in great shape, packed well, and at the perfect temperature on tha second day of Summer.
Click to expand...

Ian ROCKS!!!
 
Yes he does. It is good see the more RC sponsors are bring in non-photosynthetic corals to help fill our niche in the community.


Mike
 
Eh, GL man, those things are the ultimate PITA :lol:

You're a lot more savvy than I, I'm sure you'll be fine ;) It really is amazing all the stuff you can do with those things.
 
We shall see how hard it is. I have survived 30+ years of aquarium keeping without one, I believe in keeping everything as simple as possible, so this is a big step for me. As long as I can monitor/control the temp of my aquarium and beer from anywhere in the world, I am cool with it.
 
Reef Odyssey

Reef Odyssey

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Long over due...here is a video of the beautiful Dendrophyllia colony I picked up from Ian at Reef Odyssey.

Mike
 
Yes this was discussed in an earlier thread here, but here's a short recap with some additional details (if I am wrong about anything please correct me):

There was a correction made to that Fabricius article 1 year later. What was reported as an uptake of phytoplankton in MICROgrams should have been NANOgrams.

1 microgram = 1000 nanograms

That is a huge difference. That's like saying I ate 1000 steaks instead of 1 steak. Because of this mistake, they changed their method of analyzing algae uptake. They measured the change in chlorophyll concentration in seawater rather than in the coral itself. Based on this method they extrapolated that Dendronephthya hemprichi was taking up algae at a rate much higher than was necessary for their needs. Ok, I know this is peer reviewed science, but I don't like their method and I wouldn't put my money on such an extrapolation. It almost seems like they had to find a new way to support their old hypothesis.

Jens Kallmeyer and Claude have reported that Dendronephthya consume phytoplankton much smaller than what we are able to culture.

Widding and Schlichter published an article in 2001 that pretty much refuted Fabricius' findings using radioactive labeling of carbon in algae to measure actual incorporation into the tissues of Dendronephthya. Personally I find this method much more appropriate than measuring cholorophyll concentration in seawater. Their research found that there must be something other than phytoplankton providing the energy needs. Phytoplankton makes up at most 25-30% of energy requirements. They proposed that the remainder would be things like mucus, detritus, etc...
 
uhuru said:
Yes this was discussed in an earlier thread here, but here's a short recap with some additional details (if I am wrong about anything please correct me):

There was a correction made to that Fabricius article 1 year later. What was reported as an uptake of phytoplankton in MICROgrams should have been NANOgrams.

1 microgram = 1000 nanograms

That is a huge difference. That's like saying I ate 1000 steaks instead of 1 steak. Because of this mistake, they changed their method of analyzing algae uptake. They measured the change in chlorophyll concentration in seawater rather than in the coral itself. Based on this method they extrapolated that Dendronephthya hemprichi was taking up algae at a rate much higher than was necessary for their needs. Ok, I know this is peer reviewed science, but I don't like their method and I wouldn't put my money on such an extrapolation. It almost seems like they had to find a new way to support their old hypothesis.

Jens Kallmeyer and Claude have reported that Dendronephthya consume phytoplankton much smaller than what we are able to culture.

Widding and Schlichter published an article in 2001 that pretty much refuted Fabricius' findings using radioactive labeling of carbon in algae to measure actual incorporation into the tissues of Dendronephthya. Personally I find this method much more appropriate than measuring cholorophyll concentration in seawater. Their research found that there must be something other than phytoplankton providing the energy needs. Phytoplankton makes up at most 25-30% of energy requirements. They proposed that the remainder would be things like mucus, detritus, etc...
Click to expand...

Thanks Mike ;)

Widdig, Alexander, and Dietrich Schlichter. 2001. Phytoplankton: a significant trophic source for soft corals? Helgol Mar Res 55:198-211

Mentioned here by Eric Borneman in Reefkeeping
http://reefkeeping.com/issues/2004-08/snn/index.php

Mike
 
uhuru said:
Jens Kallmeyer and Claude have reported that Dendronephthya consume phytoplankton much smaller than what we are able to culture.
Click to expand...
This I doubt. AFAIK we have no issues culturing extremely small phyto. I'll ask out phycologist today what our bottom end is, if there is one.
 
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