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View Full Version : Does chaeto need a dark period?

shelburn61
10/04/2006, 11:26 AM
24/7 lighting seems to be the preferred method for growing caulerpa. Does this apply for chaetomorpha as well or does does chaeto need a dark period?
Travis L. Stevens
10/04/2006, 01:10 PM
A dark respiration period is actually needed for both macroalgaes. It's just lighting Caulerpa 24/7 helps decrease the chance of it going sexual
shelburn61
10/05/2006, 03:40 PM
Yeah, but 24/7 lighting works with caulerpa b/c it is able to respire in the light. Is chaeto able to respire in the light too?
Qwiv
10/05/2006, 03:41 PM
Cheato needs the dark.
rp marine
10/11/2006, 10:47 PM
do they really:\;)
mskohl
10/12/2006, 01:47 PM
mine hasn't seen dark in many many months and is growing like crazy.
Limbo
10/12/2006, 01:53 PM
How this result might relate to growth and nutrient uptake in lit refugia where macroalgae are often grown to export nutrients is not known. However, it is a sign that perhaps continuous light is not optimal, in addition to being more expensive.

Taken from Photosynthesis and the Reef Aquarium, Part I: Carbon Sources (Randy Holmes-Farley) (http://reefkeeping.com/issues/2006-10/rhf/index.php)
billsreef
10/12/2006, 07:28 PM
I find a dark period of least 4 to 6 hours makes the macro's grow faster than 24 hour lighting.
reefworldaq
10/18/2006, 08:50 AM
Hai Billsreef, Do you know about nitrogen and phosphate concentration of chaeto? thank's
Fandy Sutanto
Qwiv
10/18/2006, 11:11 AM
<a href=showthread.php?s=&postid=8364025#post8364025 target=_blank>Originally posted</a> by reefworldaq
Hai Billsreef, Do you know about nitrogen and phosphate concentration of chaeto? thank's
Fandy Sutanto

There is an article or at least the abstract online somewhere. I remember reeding it. It was a random find, but it was out there. Sorry I can't link you to it, as I didn't save it. I think I was reading up on ATS and adey's work. I remember cheato being pretty good, but not as good as some of the other turf algeas they where using.
billsreef
10/18/2006, 02:23 PM
<a href=showthread.php?s=&postid=8364025#post8364025 target=_blank>Originally posted</a> by reefworldaq
Hai Billsreef, Do you know about nitrogen and phosphate concentration of chaeto? thank's
Fandy Sutanto

I don't have anything with concrete numbers that would allow you to quantify the chaeto's uptake. A google search should turn up the article that Qwiv saw and maybe even some more ;)