Coral Maternity in Portugal

<a href=showthread.php?s=&postid=11204857#post11204857 target=_blank>Originally posted</a> by Shouse94
Well,
Just one question, not sure if I missed it somewhere in the thread. How high are your T5's mounted off the water surface?
Pete

Hello Shouse94!
T5 bulbs are so close as posíble the water surface, about 4".

Cheers,
 
Also why do you choose to replace your T5 bulbs every 6 months?I only ask this b/c I've heard from other reliable sources that T5's hold their light output curve waaaay longer than Metal Halides and don't really begin to lose efficiency till near the end of bulb life (which is way longer than 6 months). I'm not questioning your strategy, only trying to understand from your point of view/experience. Thanks for any insight you can provide.
Well you are but I still haven't got a response yet. :p
 
<a href=showthread.php?s=&postid=11239250#post11239250 target=_blank>Originally posted</a> by Shouse94
Also why do you choose to replace your T5 bulbs every 6 months?I only ask this b/c I've heard from other reliable sources that T5's hold their light output curve waaaay longer than Metal Halides and don't really begin to lose efficiency till near the end of bulb life (which is way longer than 6 months). I'm not questioning your strategy, only trying to understand from your point of view/experience. Thanks for any insight you can provide. :p

<a href=showthread.php?s=&postid=11238706#post11238706 target=_blank>Originally posted</a> by njdevilsfan
im sorry if im repeating a question
why do you replace the t5 bulbs after 6 months?
<a href=showthread.php?s=&postid=11239250#post11239250 target=_blank>Originally posted</a> by Shouse94
Well you are but I still haven't got a response yet. :p
Sorry for delay in answer to your comments.
Shouse9 and njdevilsfan: Soon or late I will answer to all questions with all pleasure of the world. :p
Changing t5 every month is really expensive. The idea that I have about lighting used in reef keeping is that, even with t5 bulbs, we can see clearly drastic changes in color temperature after few weeks after use. The lamps tends to show a significant reduction of its intensity in the first six months of life but it is difficult to assure the reduction of intensity when used for some time after that "deadline". Is accepted by all that as the lamp ages the intensity will reduce. One way to counteract this situation, not a practical idea!, would be put the fixture furthest from the surface of the water when the lamps are new and go lowering the fixture as time goes in order to maintain the intensity at the water surface, but the problem of the spectrum of light bulbs that will change with time also, it would not be resolved. The intensity of the lamps are reduced sacrificing the violet and blue radiations "left zone of the spectrum" keeping more or less stable the right yellow and red zone of the spectrum. We note that the loss of intensity is higher for blue lamps, with high kelvins, which tend to be more white when ages but the same is not true with lamps with wider spectrum, around 10,000 ° K.
It is true that there have been large technological developments in the manufacture of t5 and electronic ballasts have brought significant improvements not only at the level of intensity of the lamps but also the stability of the spectrums, bringing in much life to the bulbs, but as a matter of caution i change my lamps with high kelvins every 6 months and the bulbs with low colour temperature can go up to 8 (10 months at most). To prevent light shocked i avoid sudden increases in brightness when i change bulbs I change few bulbs at a time.

Cheers,
 
<a href=showthread.php?s=&postid=11240590#post11240590 target=_blank>Originally posted</a> by LittleBlueGT
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Thanks

Hi LittleBlueGT,

Sorry for delay, i didn't forget you.
I don't use ozone in the system.
About bacterial to reduce nutrients, i use every month Ultra-Bio and Ultra-Bac (Fauna Marin products).

Cheers,
 
Few days ago arrived new tanks destinate to the new day-cares. One of the new day-care began to be mounted to receive new babies.

General view and the new day-care localization- first plan on the left
PA206118.2.jpg



Rack of the day-care tanks
PB146260.2.JPG



Egg crate panes
PB126243.2.JPG
 
Awesome Machado!

Question: Do you make the side panels of the staircase from a single piece of eggcrate and just cut out the openings (i.e. you are not gluing pieces of eggcrate together to form the side panels)?

Stephen
 
TCU Reefer: You are close (some hours, by plain). Fly to Lisbon and I offer you some frags, i promise :D

laomedon: I’m not worried about that. I still have available space for more 6 day-care tanks! All I need is health and get money to do that.

Stephencraig: Yes, side panels are made from a single piece of egg crate. I don’t use glue at all. When I make stairs articulations, as you can see in the pic, all pieces of staircases are fixed together.
 
Machado that is an awsome look at how you did your eegcrate. I hope you dont mind me copying your idea. Its like a grandstand of corals;) Do you have problems with it floating up when empty? I quess you must weight it down untill you place enough frags on it .
 
Hi Redox!
Thanks for your comments. If people copy any my idea is because it is useful and this make me feel happy for that. The egg crate doesn't float up because the material it is made of is heavier than salt water.

Cheers,
 
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