SquidHC Posted August 24, 2010 Share Posted August 24, 2010 I'm pretty excited about this. Been considering doing a DIY LED fixture for my new 24"x14" tank. Two of these would be perfect. Quote Link to comment Share on other sites More sharing options...
SquidHC Posted August 24, 2010 Share Posted August 24, 2010 Is it in fact dimmable or no? They said it was.... Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
ReeFit Posted August 24, 2010 Share Posted August 24, 2010 Is it in fact dimmable or no? I doubt its dimmable. You may be able to wire in a dimmer between the transformer and fixture, but you would still only be controlling the dimming for the entire fixture and not color balance. I've been researching several options as well and am probably going to build myself. Quote Link to comment Share on other sites More sharing options...
kendaroo Posted August 24, 2010 Share Posted August 24, 2010 Probably not.....I don't test my water Sent from my Droid using Tapatalk Then your results will be meaningless. If you're trying to test whether or not a type of lighting setup effects the growth of coral, you would want to hold all other influential levels as constant as possible. Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 24, 2010 Author Share Posted August 24, 2010 Re: The LED experiment That would go against my experience....this tank is going to be plumbed into the main display.....results will be determined off of growth or death. I never noticed my lighting affect my parameters. Here is final layout....there is still a blue hornet frag, nightmare frag, and a few other sps and lps being added in the next week but nothing else is going to change....oh....and there is 1 hermit in there ATM Seems the LED's are going to make me mess with the camera a bit so till then here is cell shots Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
jackaninny Posted August 24, 2010 Share Posted August 24, 2010 Then your results will be meaningless. If you're trying to test whether or not a type of lighting setup effects the growth of coral, you would want to hold all other influential levels as constant as possible. I gotta agree and I think you need PAR readings also to equalize the different tank depths. Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 24, 2010 Author Share Posted August 24, 2010 Re: The LED experiment Oh...yes I am using a par meter soon to test and will post those results for those that care....but not going to test water parameters....I don't even care about the par....never tested 60g's par and everything is still growing fine.... Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 25, 2010 Author Share Posted August 25, 2010 Re: The LED experiment I am lost....so if the corals grow that doesn't mean anything? Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
kendaroo Posted August 25, 2010 Share Posted August 25, 2010 I am lost....so if the corals grow that doesn't mean anything? Sent from my Droid using Tapatalk It doesn't tell you anything about the lights since you have so many other unmeasured variables. It doesn't look like it's plumbed into the main tank. Maybe you'll post pics of that after you've done it, and start your "experiment" over. 1 Quote Link to comment Share on other sites More sharing options...
Emerald525 Posted August 25, 2010 Share Posted August 25, 2010 It doesn't tell you anything about the lights since you have so many other unmeasured variables. It doesn't look like it's plumbed into the main tank. Maybe you'll post pics of that after you've done it' date=' and start your "experiment" over.[/quote'] You need a randomized double blinded study with a larger sample size and to control for all the parameters you can . Otherwise the information is merely anecdotal like much of the advice here which is fine. Otherwise you don't know if it's the different nitrates, calcium, whatever that is affecting the growth. Quote Link to comment Share on other sites More sharing options...
moto826 Posted August 25, 2010 Share Posted August 25, 2010 ya i would test both tanks or plumb them togather you could use a overflow Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 25, 2010 Author Share Posted August 25, 2010 Re: The LED experiment This will be plumbed, if you need water parameters then I would suggest not following this as I will not be testing. PAR is as far as it goes for now unless there is a problem then I will test and post Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 25, 2010 Author Share Posted August 25, 2010 Re: The LED experiment Thought about it and it would defeat the purpose of the "experiment" if I don't test.....so call out when you want parameters or I will try and test twice a week Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 25, 2010 Author Share Posted August 25, 2010 Re: The LED experiment Plus it will help identify issues and eliminate light suspicions....or verify them..... Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 26, 2010 Author Share Posted August 26, 2010 Re: The LED experiment Small update with test results Cut 3 frags off this milli And placed one on each level Bottom Middle Top Test results Sal 1.025 Nitrate 0 Nitrite 0 Amonia 0 PH 8.0 Phosphate 0 Same as 60.....with different light. Am I the only one who doesn't see where light affects parameters? Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
reefnjunkie Posted August 26, 2010 Share Posted August 26, 2010 I was thinking about that as well and I don’t think that they would affect the parameters, it is more of ruling out a certain condition if it seems things don’t grow as well or grow better-It takes the water conditions out of the equation when so many variables can come into play when try to determine how well the lights can grow something. I think you are fine without the test, it just depends on how anecdotal or anal you want to be(scratch) One of those words fit-don’t they DOH! Quote Link to comment Share on other sites More sharing options...
kendaroo Posted August 26, 2010 Share Posted August 26, 2010 Am I the only one who doesn't see where light affects parameters? Sent from my Droid using Tapatalk LOL, you are the one who has been saying that light affects parameters. It's just that your results might be skewed if you don't *measure* parameters since they are influential in coral growth and you might actually be seeing the effect of those parameters and not the effect of the light... go look up "confounding" on wikipedia if you are still confused. If you don't want to measure, then don't. Some people are fine with anecdotal evidence. It's what brought us bloodletting, and vaccines "causing" autism. (scratch) Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 26, 2010 Author Share Posted August 26, 2010 Re: The LED experiment Kinda like the whole dosing snake oil?....lol No seriously I would imagine any growth would be accredited to the light as if I had no light I would get no growth....right? Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
Gill Posted August 26, 2010 Share Posted August 26, 2010 Kinda like the whole dosing snake oil?....lol No seriously I would imagine any growth would be accredited to the light as if I had no light I would get no growth....right? Sent from my Droid using Tapatalk True but if the corals don't grow the test's will help to implicate the light and rule out you as a factor. I mean if everything goes well the tests will prove to be somewhat useless. However if you show little to no grow you will have proved nothing because it could all be water quality. I guess you did say you would test if you had problems though? P.S. I never test my water either LOL Quote Link to comment Share on other sites More sharing options...
Gill Posted August 26, 2010 Share Posted August 26, 2010 Sorry Eric I just went back and read previous pages in this thread and saw the part about pluming the system together that sounds like a good enough control to me. Quote Link to comment Share on other sites More sharing options...
ReeFit Posted August 26, 2010 Share Posted August 26, 2010 I was thinking about that as well and I don’t think that they would affect the parameters, it is more of ruling out a certain condition if it seems things don’t grow as well or grow better-It takes the water conditions out of the equation when so many variables can come into play when try to determine how well the lights can grow something. I think you are fine without the test, it just depends on how anecdotal or anal you want to be(scratch) One of those words fit-don’t they DOH! i can make them both fit. analdotal and anecanal. Quote Link to comment Share on other sites More sharing options...
grassi Posted August 26, 2010 Share Posted August 26, 2010 Artificial coral growth, as natural coral growth, is influenced by seasons. Any test should be run for at least 12 months to obtain good results. So time is another important parameter. There is a lot of references in the study of the so called Reefballs (yes, it sounds kinda funny). Also, good source of information is the University of Hawaii, Department of Oceanography. There are a lot of papers from them that are available online. Quote Link to comment Share on other sites More sharing options...
CA2OR Posted August 26, 2010 Author Share Posted August 26, 2010 Re: The LED experiment I am hoping to not mess with this tank for a year. That was my plan. Gill that is what I thought too.....plus both tanks will beneipfit each other Sent from my Droid using Tapatalk Quote Link to comment Share on other sites More sharing options...
half-astronaut Posted August 26, 2010 Share Posted August 26, 2010 Artificial coral growth' date=' as natural coral growth, is influenced by seasons. [/quote'] But if your light/temp/nutrient parameters are the same year 'round you aren't giving any seasonal cues. Coral don't have calendars. Its like greenhouse growing plants. Quote Link to comment Share on other sites More sharing options...
grassi Posted August 26, 2010 Share Posted August 26, 2010 But if your light/temp/nutrient parameters are the same year 'round you aren't giving any seasonal cues. Coral don't have calendars. Its like greenhouse growing plants. Probably, if you have a good chiller or a temperature controlled room, which is not this case. Not sure though. Think about the effects of the moon Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.