Now that's funny. Then my Great grand children will be able to use MH.
Is metal halide dead?
- Thread starter Chibils
- Start date
Now that's funny. Then my Great grand children will be able to use MH.
Johnseye
Reef Addict
Not sure if you got my point but...
It will be a long time before the gas engine is replaced, but it will be and why wouldn't your great grand children be able to use MH provided someone still makes the bulbs.
Johnseye
Reef Addict
I play both acoustic and electric. Not a good comparison. Neither will be driven out of manufacture by a lack of demand.
I got your point, I was just poking fun.
Everything changes.
karimwassef
Active member
Are we working to define the term "dead"?
Really??
"And what does the term 'and' mean to you, Mr prosecutor?"
Really??
"And what does the term 'and' mean to you, Mr prosecutor?"
hkgar
Active member
It depends on what the definition of is, is. To quote a famous person.
Klaus Jansen
.Registered Member
Is metall halide dead ? Maybe... next step are plasma halide lamps... for big tanks, LED is to weak....
My next private tank use 4 x 400 metall halides or plasma lamps like this .... i am not a big friend of LED´s
http://www.salzwasserwelten.de/produkttests/beleuchtung/gavita-300w-lep/
best regards .. Klaus
My next private tank use 4 x 400 metall halides or plasma lamps like this .... i am not a big friend of LED´s
http://www.salzwasserwelten.de/produkttests/beleuchtung/gavita-300w-lep/
best regards .. Klaus
gcarroll
Active member
Klaus,
Gavita has pretty much left the aquatics side and returned to horticulture. Aquatics side has been left to Euroquatics. Euroquatics is only producing LED fixtures.
Tang Salad
Algae skeptic
Since it's in the title of the thread, and it's at the center of this discussion, and the discussion is running around in circles... The reason it may be going nowhere could be due to different definitions of a dead technology.
For example Gcarrol defined dead as having no new advancements. I disagreed, pointing out several technologies that are still in daily use but which haven't advanced much technologically. I think a better definition of dead is when the product is no longer sold in retail markets.
Tang Salad
Algae skeptic
Well, sort of. My point was that even though those technologies have more or less stopped advancing and replacement technologies do exist, nevertheless, the old tech isn't dead. It's still available.
I have one actual question, not in the LED vs MH debate. But my LFS said that MH was being ruled out of the aquarium trade, as they found the bulbs and/or ballasts have mercury in them? So it was going to become illegal to utilize those setups in a home setting?
I repeated what I was told verbatim, but obviously am unsure as to the merits of that statement
I repeated what I was told verbatim, but obviously am unsure as to the merits of that statement
hkgar
Active member
CFL also have mercury and you should use a hazmat suit to clean up a broken CFL. Ok, that is an exaggeration, but there are EPA procedures for the clean up.
I've got a Goode Company Texas Pecan Pie. [emoji2] Unfortunately no Blue Bell yet.[emoji22]
Perth_reefer
Member
I put a quantum meter on my Hydra52s and measured 700 PAR just below the water surface, 450 PAR at mid tank level and 250 PAR on the sand bed. That is plenty of light for good Acropora growth which generally needs between 250 and 450 PAR depending on species.
You are correct about the optical angle however, this is the reason you need more fixtures with LED, to achieve the correct light spread over the whole tank.
There are so many people who go back to MH from LED stating all the same comments 'They don't grow coral'...it's been proven that they do so you had them set up wrong, 'There's too much shadowing'.....you didn't buy enough fixtures for your tank size or 'They were unreliable'...well don't buy cheap eBay fixtures!
99% of the time problems with LEDs are down to the user making incorrect choice in fixture type, number of fixtures and settings.
It takes time to get them right, after 6 months use I've just found that running mine at 65% with the settings I am using seems to get the best colour and growth from my Acropora.....that's another reason people seem to ditch LEDs to go back to MH, lack of patience.
Johnseye
Reef Addict
Oh I like pie too...better than cake :celeb3: :beer:
gcarroll
Active member
So by that rational, what technology in this hobby is dead? Are you saying the original question is rediculous?
Johnseye
Reef Addict
I brought up the issue with the language. I think the OPs intent was to understand whether MH was a dieing tech, not currently dead which most of us know it is not. To clarify, what I mean by dieing is declining from what it once was. It may never actually die, as long as there's a demand which pays for the supply. It's just semantics.
Under gravel filters might be dead :clown:
karimwassef
Active member
Going back to the OP's definition of dead:
Is it worth it? Depends on your personal preferences. It is available and will remain so for the foreseeable future.
It's getting harder and harder to find anything. I have no trouble getting them and they are getting more competitive too.
It seems to be on its way out for good. That's an opinion or a personal observation. Others here have made opposing observations.
Is it worth it? Depends on your personal preferences. It is available and will remain so for the foreseeable future.
It's getting harder and harder to find anything. I have no trouble getting them and they are getting more competitive too.
It seems to be on its way out for good. That's an opinion or a personal observation. Others here have made opposing observations.
