Corals Under NO Fluorescents
Hi to you guys there at www.WetWebMedia.com. I hope you all are well. Two months ago, I started my saltwater fish tank and I'm very interested in putting corals in, but I have 5 fluorescent tubes (2 Sylvania coral star blues, 3 normal daylight tubes) all are 36 watts measuring 180 watts of light over my 55 gallon tank.
<Ok>
I have been told I can put in mushrooms, Zoanthids, Sinularia, Sarcophyton, Lobophytum and some other soft corals. Is this correct?
<Yes>
Some other websites say that you can also put in brains, candy, torch coral and tongue corals with my levels of light (somehow I don't believe this).
<It will depend on exactly what you mean by these common names. Take brain corals for example. I house a Trachyphyllia under 160 watts of NO fluorescent in a 55, but I would not attempt a Favia or Favites (also referred to as brain corals). The Caulastrea (Candy Cane coral) and many of the Euphyllias (Torch, Hammer, and Frogspawn) would also be ok. Let me suggest you get a copy of Eric Bornemann's "Aquarium Corals" as a reference. It is excellent.>
So, guys could you please give me a few species of corals that would live under my lighting levels. I wish you every fish keeping success. Cheers, Brendan
<Have a nice weekend! -Steven Pro>

A Little Light Conversation
Crew,
I have purchased some lighting for my 75 gallon aquarium, but to find out what I really just purchased, I decided to once again make the climb up the mountain to ask the fish gurus for advice.
<Not a very steep mountain that I'm on! Scott F. firmly on the ground with you tonight>
Let's just say that I'm reasonably satisfied with my purchases;
however, my girlfriend thinks it might have been wiser to spend it on more important things (she mentioned food or something...).  
<Sheesh... Food is highly overrated...just keep fishes...yep...>
Without further ado, I shall present the meager specs of my little light show (all 48"):
1 standard 40 W fluorescent bulb
1 20,000 K 40 W Coralife bulb
1 50% 6000 K daylight, 50% actinic 03 blue 40W Coralife bulb
There you have it.  I don't know if the combination of these is any good. I'm just interested in getting maybe a few anemones, or perhaps some damn hardy coral.  Will this lighting be sufficient, or should it be amplified.
<Well, quite frankly, I like this color combination... fairly blue- which I like. As far as intensity, I'd say that you'd best stick to some of the lower-light-favoring Corallimorphs, such as Mushroom corals, Cynarina, etc. You can create a cool display with those mushrooms, believe me>
If not use one of the bulbs without losing any efficiency, that'd be nice (my tops getting crowded).  Or, if you could recommend different bulbs for about the same price, I'd be much obliged.
<I'd add another actinic in place of the standard fluorescent, myself..>
Thanks in advance (all this assumes you'll give some sort of intelligent answer....but I'm sure you have it in ya). David
<Yep- after the crack I made about just buying fish instead of food, ya gotta wonder about that, huh? Take Care! Regards, Scott F>

Lighting
Yet another ???
I am building a soft coral prop tank and I will be using NO fluorescents about 2-3 inches above the corals (Shrooms ,colts ,leathers)...do I need a specific spectrum or can I just use regular white cheapies?
tanks again
<If you are going to be using NO fluorescents I would go with full spectrum bulbs.  Anthony has a great article on lighting Marine Invertebrates located at the link below. -Gage
http://www.wetwebmedia.com/marlgtganthony.htm >

Light Output of Power Compacts VS NO Fluorescents 4/13/04 
Good Morning WWW Crew.... Happy Easter! Hope the Easter Bunny was good to you!! 
<Indeed he was! Season three of "The Family Guy" on DVD. Much sweeter than any chocolate!> 
I had a question posted on one of the boards I moderate, to date there have been no replies that actually answer the question. I did do a good bit of research, including searching through your articles and FAQs, before bothering you guys with the question but have been unable to find anything that actually provides the information requested. I was hoping one of you could help me out. 
<Hmmm... I will do my best.> 
Their question was..... Why do PC bulbs the same wattage and length of NO fluorescent bulbs have a higher light output? Many of the internet sources & LFS simply state PCs provide much more light for the same # of watts as NO fluorescents do. I cannot find an explanation of how and why this is, just lists of the many advantages of PCs. 
<This is not really true. Watt for Watt, no widely used light source significantly outperforms another. PC, VHO and T-5 pack more wattage into the same or smaller package, so the look brighter, and can produce more intense lighting over the same space, but watt for watt they produce very close to the same quantity of light. More intense light in a smaller area does penetrate better through water, but at the expense of even distribution. Another way to look at it is in terms of the energy efficiency. All light sources turn some of the electricity into heat and some into light. A regular incandescent light bulb converts less than 10% of it's wattage to light, with the rest going to heat. All florescent technologies convert about 30% of their wattage to light, and Metal halide can convert up to about 60% of it's wattage to light. 
FWIW, I am not a big PC fan. The lamps are expensive to replace and the fact that their are several standard bases makes choosing the correct lamp quite confounding. Also, because the lamps are always "folded over", a large amount of the light is lost by simply shining onto the adjacent part of the tube.> 
Would one of you be able to enlighten :) me, so I can pass the info on to other inquiring minds. 
<Hey! We don't appreciate bad puns around here. That comment wasn't very BRIGHT of you.... Oh never mind.> 
Thanks so much as always, Leslie 
<Glad to. I hope I helped clarify this muddy issue. Adam>

Lighting Question
Hi Bob:
Hope all is well. I recently had one of my ballasts go out in my Oceanic strip lights (2 30" fluorescent, using 2 'NO' 24" bulbs each). I was thinking of buying the oceanic replacement that uses the HO single bulb compact lighting. I currently have a fish only tank with about 5-6 2-4 lbs pieces of live rock.
The question is do I spend double the money for these new lights (around $140 for both) or do I go the cheap way and just replace the with regular dual 'NO' fluorescent lights (probably $60-80)? Is it worth the upgrade? (e.g. brighter, better for the live rock etc...)
<A good question... comes down to a consideration of really cost now vs. costs in the longer run and function/looks... The better lighting is better... and seemingly more costly... but will save you money in not so much time... in real electrical costs (versus useful light production) and replacement lamps/fixtures... Looks-wise and function wise the upgrade is definitely worth the small initial investment difference... I would upgrade>
As always thanks for your advice.
Chris Goldenstein
<Be chatting my friend. Bob Fenner>
 

Going From NO to VHO
Hello Steven, or Anthony???
I would like to ask you a lighting question today. Brief tank setup is as follows. 5'L x 30"H x 16"W. The tank is a see through from both sides, and overflow is on 1 end ( not in a corner). My rock is setup in a 2 level formation, and runs the whole length. I did this so I have more play with positions for my corals. I keep mainly soft, and LPS corals. I like that blowing in the wind look.. heh, heh. The lights are about 28" from the sandbed, and between 15", and 18" from the upper level of rockwork ( depending where you measure from, it varies). I currently have a Icecap 660 running 2 actinics, and 2 white fluorescents all from Coralife. They are presently NO lights. ( I am pretty sure this is not enough. I would like to go to VHOs. My question is this. I currently have all 4' long lamps that don't light about 6" on either end, and I want to change them to 5'. Will it be o.k. if the light will also shine directly down my overflow ( I have a standpipe in it that silences the noise), I am thinking if algae starts to grow down the overflow, it will make kind of a refugium ( I already have a refugium with Miracle Mud, LR, and Caulerpa as my filter system in my basement). Will going from 4' to 5' lamps increase the intensity also, even if I did put back the same types of lights, only longer ones. The fact that I want to upgrade to VHOs will increase the intensity already, and what concerns me is I cannot just turn them all on at once since the corals, and fish are currently not used to this brightness ( they are not even used to VHOs!!) Yet I have to move the end caps to add the longer ones. If I change all 4 NOs for 4 VHOs at the same time, but only turn on 1 of each at first for a week, or 2, should this be o.k. Or what is your opinion of how to go about the change, keeping in mind that the distance for all 4 end caps have to be adjusted at the same time. Also what do you think of the URI brand, or do you know of another brand that makes 5' long fluorescents? I do not want MH, as I think I don't need it, and the
electricity, and heat problems!
<Do change your lamps to four 4' or 5' VHO's. For the first week, run only two of the VHO's for your normal photoperiod and the other two for two hours in the middle of the day. Gradually increase the other two lamps two hours per week until they match your regular photoperiod. URI makes great lamps, my personal favorite. I would recommend two actinic 03's, one white actinic (50/50), and one AquaSun. -Steven Pro>
Thank a bunch in advance,
Greg N.( Montreal, Canada)

55g NO lighting q's once again :)
Hello Bob, or if you are not back yet, whomever is answering this. I think I will go with the four NO bulbs on this tank. 4 x 40w, 3 9325k and 1 actinic. Mr. Fenner, could you give me a link to Steve pro's NO 55g? OR if this is Steve, could you give me that link again? I would like to have another look at the tank to get some ideas. Thanks.
<I am going to give you the link to the first page as the webmaster was going to be moving a few things around http://www.masm.org/ I have been successful keeping a variety of LPS, soft corals, mushrooms, and Zoanthids under NO, but I have been careful to avoid high light animals like SPS. A good book, like either of Eric Bornemann's or Anthony Calfo's, would be extremely helpful. -Steven Pro>

Lighting a 50 Gallon
Hi Bob-   My father & I have just set up a 50 gal tank in his home office (Boy, is his productivity going to drop!).  The dimensions are 36"w x 18"d x 18"h.  He has purchased two single fluorescent fixtures (made by AGA - incl. a NO 30w 9300deg.K bulb each).  There is nothing in the tank yet except salt water, soon to be LR as well.   My question has to do with lighting the live rock.  My feeling is that this one-watt-per-gallon might not be enough to keep the LR healthy (?).  He could add a 2x96w CF fixture (he had planned to do this eventually...is now the time?) which then, added to the pair he has now, would net 5w/gal. Does he need to do this soon, or can he wait until he wants higher-Lux needing inhabitants?  In other words, will the LR benefit greatly from higher intensity lighting?
<Yes, your growths of coralline algae and any macroalgae with definitely benefit by the increase in lighting.  But, if you really want to see the live part of you liverock take off, hold off on putting fish in for a couple of months.  I know it will probably kill you to wait, but you will see worms, copepods, amphipods, and a myriad of other life forms populating your tank.  This allows these small creature's populations to get a jump start before the predators (fish) are added.>
With this additional fixture, what is your opinion as to the ideal color combinations of these bulbs?  My thought is to replace the two NO 9300K's w/ actinics, and use daylight spectrums in the CF's.  Will 60w of NO actinic be sufficient for this tank?  Or would you include a 50/50 CF as well?
<I agree with your initial idea, two 30 watt Actinic 03 normal output lamps and two 55 watt full spectrum compact fluorescent lamps.>
Thank you very much!  Erik Nelson
<You are welcome.  -Steven Pro>