light required by diferent corals

StirCrazy · #1 04-03-2002, 07:53 PM

Hi, ok this might be a way out question but I was wondering if there was any listing of various corals and the amount of light they need as a minimum measured in µmol m^-2 s^-1.

or even the lighting at various depth in the ocean would be good also.

Steve

DJ88 · #2 04-03-2002, 07:59 PM

I am sure you can find that info on fishnet Steve.

I think Richard Harker or Dana Riddle has listed the light at various depths on that board. If not it will be in aquarium frontiers.

HTH

Aquattro · #3 04-03-2002, 08:02 PM

Steve, Eric Borneman wrote an article in this month's Reefcentral Online mag....it describes the locales that corals are collected from. Any given species of coral can originate in drastically different conditions. So you can say a species of say, acro, needs a quantitative amount of light. It depends on where they came from, the amount of consumed food available, etc. I'm sure there is a minimum required to sustain life based on photosynthetic nutrition only, but I would suspect that there is no table describing these values.
so yes, your question is way out there :D

StirCrazy · #4 04-03-2002, 08:03 PM

hmm never heard of fishnet.. is it a BB?

Steve

DJ88 · #5 04-03-2002, 08:07 PM

Fishnet is on compuserve. You'll find some of the bigger names in the hobby posting there.

Just to clarify. what you will find is the light penetration at various depths. AS well they do list the latitude as you will get different readings at differnet latitudes. I do think for the most part they will list it as summer peak.

DJ88 · #6 04-03-2002, 08:09 PM

[ 03 April 2002, 16:11: Message edited by: DJ88 ]

StirCrazy · #7 04-03-2002, 08:14 PM

ok I must be doing something wrong I can't find this fishnet.. I keep getting stockings or webhosting places.. not that I mind fishnet stockings mind you :D

Steve

DJ88 · #8 04-03-2002, 08:19 PM

Its a compuserve forum..

http://forums.compuserve.com

Troy F · #9 04-03-2002, 08:50 PM

>You'll find some of the bigger names in the hobby posting there.<

Why thank you Darren. ;)

reefburnaby · #10 04-04-2002, 12:30 AM

Hi,

Its probably better to get a book and look up the lighting requirements in there. I have tried searching for this stuff on the web, but it's all in the books. The really expensive books...

In general, 100 to 150 uMol/(M^2*s) is representative of 40 M depths in the ocean -- this is the bare minimum for reef tanks. LPS and softies reside in this area. 2.5x that (or 250 to 500 uMol/(M^2*s)) for SPS rich areas -- which is around 10M to 15M.

- Victor.

[ 03 April 2002, 20:31: Message edited by: reefburnaby ]