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- Path: sparky!uunet!gumby!wupost!usc!celia!steve
- From: steve@celia.UUCP (Steve Tyree)
- Newsgroups: rec.aquaria
- Subject: Re: [M] Moon light for reef
- Message-ID: <2111@celia.UUCP>
- Date: 16 Nov 92 20:07:37 GMT
- References: <Bxs2K1.8IA@ra.nrl.navy.mil>
- Reply-To: celia!steve@usc.edu (Steve Tyree)
- Distribution: usa
- Organization: Rhythm & Hues, Inc., Hollywood
- Lines: 36
-
- In article <Bxs2K1.8IA@ra.nrl.navy.mil> tse@ra.nrl.navy.mil (Anthony Tse) writes:
- ->Hello,
- -> I am ready to put a moon in my reef. How is it done? Do you
- -> change the intensity and leave the moon on all night? Or do you
- -> fix the intensity and change the duration it is on?
- -> I am planning on doing the former so I don't have to stick my
- -> head in my stand to change the timer peg everyday. The setup
- -> is a OSRAM 9W blue bulb since I have a 9W CF fixture in my junk pile.
- -> I'll turn it on in the evening when I do my daily routine and I'll
- -> rubber band a piece of cardboard onto the fixture to reduce the light
- -> output according to the phase of the moon. Any comment?
-
- My moon setup is stimulating some corals to spawn in artificial lunar
- rhythms. The moon illuminance is on for the entire night and the intensity
- is varied on a linear scale. The intensity value for each day has been
- calculated previously and the scale is listed below.
-
- .0 .01 .02 .04 .07 .11 .16 .22 .28 .36 .44 .54 .64 .74 .86 1
- ----------------------------------------------------------------------------
- New First Full
-
- .86 .74 .64 .54 .44 .36 .28 .22 .16 .11 .07 .04 .02 .01
- ---------------------------------------------------------------------
- Last
-
- You could use the above table as a guide for setting the cardboard shield.
- It would be best to create a hinged shield with a normalised scale. If you
- are doing this as an experiment to stimulate coral spawning, watch the reef
- during night twilight for spawns 4-6 days following the full or new moon.
- A Gorgonian sp. coral recently spawned in my reef during the full moon phase
- for 2 different months. The time of spawn each day was always the same.
- The eggs were released 1 hour after full daylight was achieved for this coral.
- Until we know how every captive coral spawns, we have to always take a good
- look at the reef whenever we walk by.
-
- Steve Tyree - Reef Breeder
-