Anyone Thinking of Dumping LEDS and going back to Halides
- Thread starter Goldcoastreefs
- Start date
DavidinGA
Active member
Are bulbs becoming scarce?
jminick2
New member
I bought the last two xm 20k at aquacave today. he said they had been discontinued. he did say they were still planning on restocking the Phoenix 14k the first of next month.
I rarely post anything.
IMO MH vs LED
They both works "just" !
It's like Windows vs Apple
My friends who got Windows are always trying to fix something I do have Apple computer and don't have to do anything. Same thing goes for LED constant adjustments or MH set and go.
Again this is just my 2 cents
Happy reefing
IMO MH vs LED
They both works "just" !
It's like Windows vs Apple
My friends who got Windows are always trying to fix something I do have Apple computer and don't have to do anything. Same thing goes for LED constant adjustments or MH set and go.
Again this is just my 2 cents
Happy reefing
Depends on what you buy. With XM, I'm not sure many people buy them anymore. They were popular many moon sago, but interst subsided and production probably did as a result. Phoenix controlled the DE market and Radium controlled the SE market. Phoenix decided to restart production after interest became overwhelming. Like T5, there is a very select group of dependable products (Giesman and ATI) and halide is going the same way. With a lot of people switching back, you are starting to see a lot more hybrid fixtures and select companies to choose from.
DavidinGA
Active member
And...whats the science behind that? Anyone?
mhucasey
Acros & wieners, oh my!
Increased availability of light that is photosynthetically usable results in increased uptake of CO2 from the water. Increased CO2 uptake results in lower carbonic acid concentration in the water and higher PH.
DavidinGA
Active member
Cool. Good to know.
Lots of other variables I know, but...
Low pH issues can be caused by insufficient lighting.
High pH could be attributed to excess light.
kenpau
New member
I'm just about to change from using solely LED to using an LED/T5 hybrid. my PH has been between 8.0 and 8.2, should I be expecting a PH increase now then?
power boat jim
Well-known member
I would not bet on it. I have changed light sources numerous times with no effect on pH. The above post about pH increase due to a lighting is the only case I have heard of and I wonder if the lights are really the cause.
kenpau
New member
I wouldn't bet on it either, there are so many things that can affect PH, it's far to easy to blame it on lighting! My new light is going up tomorrow and its a lot more powerful than my existing lights so I'll be waiting for that PH rise......
shred5
Premium Member
It can if he has enough algae, If there was little algae it would not make a difference. A increase in photosynthesis or increase in growth of algae due to more light sure can cause a rise in ph.
What causes a ph rise during the day?
Why do some people reverse light their fuges at night?
Lighting does not directly affect ph but does so indirectly. Matter of fact the biggest daily ph swings are caused indirectly by lighting if you think about it.
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power boat jim
Well-known member
All true, but all things being equal a change from one light source to another should not cause such a big jump in pH. There are way too many variable to consider before buying in to the program of saying MH keeps pH higher then LED. Not saying it did not happen but I would need to know way more about the tank and its details before I believe that theory.
mhucasey
Acros & wieners, oh my!
I think the statement that was made about the New lighting and the old LED system not putting out comparable amounts of light is the key here. I had an increase of pH when I switched from LED to T5, but I attribute that to not having enough light output from my LED system.
shred5
Premium Member
Honstly I am a big advocate of LED light, however the facts I have presented about pH in my tank after lighting change, are the surprise for me. My led lamp was DIY project consiting of almost 200 of 3W cree and UV leds (6500K, 450nm, 475nm, 670nm, 420nm, 405nm) over 130 galon SPS tank. What can be seen on the picture below was essencialy grown under the leds. Now T5 is two ATI Sunpower with 12 x 39W in total
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