Kessil LED vs Halide T5

[aabjones888]

Awesome thread, I'm following along!

 

[A. grandis]

I am curious to see if you end up with the same results as my favorite LFS did while running Kessils exclusively? The corals under their Kessils grew very fast and are now colonies but only have polyps on the top half of the SPS which looks very odd compared to most other types of lighting. I will have to check the Model # of Kessil next time I go visit.

That will happen only if Boom allows them to grow out as colonies.
That's one of the things related to the long run effects of LED only use, and it affects different species in different degrees.
Some people try to excuse the lack of efficiency of the LEDs in this matter trying to feed particles to the system. Those people affirm that the LEDs aren't the reason why they have that happening, but a comparison with other light sources will quickly show the differences. The feeding of food particles is a parallel boost in coral growth and health. It is related mostly with coloration and formation of pigments and reproduction ability, but these factors are correlated to the quality and availability of light.
I'm glad you posted here!!
Normally that occurs with the SPS corals as they grow out as the shades get stronger.
That can also happen with the metal halides and/or T5 users, but it will be much, much less.
The MH/T5 combo will almost eradicate that from a well planned system.
We can find that in some cases in the wild, as a natural phenomenon, but in way much less percentage and noticeable due to the structural formation in perfect synchronization with the environment.

When one uses LEDs only for zoanthids that doesn't happen as often simply because the zoas won't even grow under ledges in most cases. In addition, the zoa colonies normally show their polyps like an umbrella on the top part of the rocks. The nature of the quality of light emission from diodes does that! It's the quality of light with straight rays without good distribution trough the system. The nature of LEDs!

If you have a rock with healthy zoas growing under a T5 only or a MH/T5 system, and exchange for a LED only fixture, you will see a line where the shades determinate where the life will be present! ;Wideyed The polyps under the shades will suffer from tissue recession first and then they will simply and disappear in the long run. ;Dead You can replace the T5s back and the zoa colony will grow back!! That is fact! Quality of the nature of difference light sources.

The first thing that happens with the SPS colonies, as for an example a table Acropora or a nice Montipora, is the growth. After the thickness of the branches, it will gradually shade the polyps under the colony. The coenosarc (tissue between the polyps) is the first to suffer due to it's thickness and shrink, preventing the optimal distribution of nutrients among the polyps. Then the recession takes place, showing the skeleton. Lack of reflected and uniform light is the reason.

This is one of the things related to growth structure I've been trying to show people and would hope not to be ignored.
When LEDs are used as a secondary light source or a 3rd light source it would only add to a system, cosmetically.

The priority of our aquarium equipments should be directed to help maintain the organisms we keep. It's not about savings in any matter.
I would be glad if you could post some pictures here to illustrate, please.
Thanks for your post!

Grandis.
Edit: some of the english.

 

[A. grandis]

It's two light systems against each other. The T5 are part of the fixture just as much as the halide. The purpose of this test is really for my own goals. I just thought I'd bring you guys along for the ride. For me, there are some customers who want coral grown under halides/T5. I can now offer that. In addition I grow some of my own colonies that I frag, so I want maximum coral health and growth. If I was just a turn and burn vendor who doesn't care about growth then I'd just use whatever light makes the corals look expensive.

That is a very good virtue!
Grandis.

 

[iemsparticus]

That will happen only if Boom allows them to grow out as colonies.
That's one of the things related to the long run effects of LED only use, and it affects different species in different degrees.
Some people try to excuse the lack of efficiency of the LEDs in this matter trying to feed particles to the system. Those people affirm that the LEDs aren't the reason why they have that happening, but a comparison with other light sources will quickly show the differences. The feeding of food particles is a parallel boost in coral growth and health. It is related mostly with coloration and formation of pigments and reproduction ability, but these factors are correlated to the quality and availability of light.
I'm glad you posted here!!
Normally that occurs with the SPS corals as they grow out as the shades get stronger.
That can also happen with the metal halides and/or T5 users, but it will be much, much less.
The MH/T5 combo will almost eradicate that from a well planned system.
We can find that in some cases in the wild, as a natural phenomena, but in way much less percentage and noticeable due to the structural formation in perfect synchronization with the environment.

When one uses LEDs only for zoanthids that doesn't happen as often simply because the zoas won't even grow under ledges in most cases. In addition, the zoa colonies normally show their polyps like an umbrella on the top part of the rocks. The nature of the quality of light emission from diodes does that! It's the quality of light with straight rays without good distribution trough the system. The nature of LEDs!

If you have a rock with healthy zoas growing under a T5 only or a MH/T5 system, and exchange for a LED only fixture, you will see a line where the shades determinate where the life will be present! ;Wideyed The polyps under the shades will suffer from tissue recession first and then they will simply and disappear in the long run. ;Dead You can replace the T5s back and the zoa colony will grow back!! That is fact! Quality of the nature of difference light sources.

The first thing that happens with the SPS colonies, as for an example a table Acropora or a nice Montipora, is the growth. After the thickness of the branches, it will gradually shade the polyps under the colony. The coenosarc (tissue between the polyps) is the first to suffer due to it's thickness and shrink, preventing the optimal distribution of nutrients among the polyps. Then the recession takes place, showing the skeleton. Lack of reflected and uniform light is the reason.

This is one of the things related to growth structure I've been trying to show people and would hope not to be ignored.
When LEDs are used as a secondary light source or a 3rd light source it would only add to a system, cosmetically.

The priority of our aquarium equipments should be directed to help maintain the organisms we keep. It's not about savings in any matter.
I would be glad if you could post some pictures here to illustrate, please.
Thanks for your post!

Grandis.

 

[DSC reef]

Ha, ha! That's friggen funny

 

[S-t-r-e-t-c-h]

That will happen only if Boom allows them to grow out as colonies.
That's one of the things related to the long run effects of LED only use, and it affects different species in different degrees.
Some people try to excuse the lack of efficiency of the LEDs in this matter trying to feed particles to the system. Those people affirm that the LEDs aren't the reason why they have that happening, but a comparison with other light sources will quickly show the differences. The feeding of food particles is a parallel boost in coral growth and health. It is related mostly with coloration and formation of pigments and reproduction ability, but these factors are correlated to the quality and availability of light.
I'm glad you posted here!!
Normally that occurs with the SPS corals as they grow out as the shades get stronger.
That can also happen with the metal halides and/or T5 users, but it will be much, much less.
The MH/T5 combo will almost eradicate that from a well planned system.
We can find that in some cases in the wild, as a natural phenomena, but in way much less percentage and noticeable due to the structural formation in perfect synchronization with the environment.

When one uses LEDs only for zoanthids that doesn't happen as often simply because the zoas won't even grow under ledges in most cases. In addition, the zoa colonies normally show their polyps like an umbrella on the top part of the rocks. The nature of the quality of light emission from diodes does that! It's the quality of light with straight rays without good distribution trough the system. The nature of LEDs!

If you have a rock with healthy zoas growing under a T5 only or a MH/T5 system, and exchange for a LED only fixture, you will see a line where the shades determinate where the life will be present! ;Wideyed The polyps under the shades will suffer from tissue recession first and then they will simply and disappear in the long run. ;Dead You can replace the T5s back and the zoa colony will grow back!! That is fact! Quality of the nature of difference light sources.

The first thing that happens with the SPS colonies, as for an example a table Acropora or a nice Montipora, is the growth. After the thickness of the branches, it will gradually shade the polyps under the colony. The coenosarc (tissue between the polyps) is the first to suffer due to it's thickness and shrink, preventing the optimal distribution of nutrients among the polyps. Then the recession takes place, showing the skeleton. Lack of reflected and uniform light is the reason.

This is one of the things related to growth structure I've been trying to show people and would hope not to be ignored.
When LEDs are used as a secondary light source or a 3rd light source it would only add to a system, cosmetically.

The priority of our aquarium equipments should be directed to help maintain the organisms we keep. It's not about savings in any matter.
I would be glad if you could post some pictures here to illustrate, please.
Thanks for your post!

Grandis.

Bare bottom tanks also contribute to this. White sand will reflect more light back upwards and help distribute the light even underneath colonies. You have to deal with all of the other issues that having substrate has, but it does help contribute to an overall brighter tank...

 

[A. grandis]

Bare bottom tanks also contribute to this. White sand will reflect more light back upwards and help distribute the light even underneath colonies. You have to deal with all of the other issues that having substrate has, but it does help contribute to an overall brighter tank...

Yes, you are correct!
The reflection from the sand is one of the solutions for the problem with any artificial light.
The matter of fact is that this phenomenon is more prominent with LEDs than MHs or T5s.
Great observation!
Grandis.

 

[A4goulet]

Awesome experiment. Following.

 

[MrWheelock]

Gotta follow, I'm running just LED's and have been thinking about adding a T5 or so.

 

[newbreefer316]

Following along. I've never ran mh but I've seen some tanks with the geismann fixture.and they definitely peaked my interest.

 

[jasonrusso]

As someone who wants to buy a one and done light I'm following along.

 

[Upstartreefer]

Awesome definitely following along. I just bought 2 AP700'S. Will love to see how kessil stacks up.

 

[DSC reef]

Bare bottom tanks also contribute to this. White sand will reflect more light back upwards and help distribute the light even underneath colonies. You have to deal with all of the other issues that having substrate has, but it does help contribute to an overall brighter tank...

This is the main reason I'm going to use white starboard next time. Love the bare bottom though stretch!

 

[SashimiTurtle]

Nice comparison test, even if it isn't "scientific." Following to see some results. (Pulling for those Kessils)

 

[Cherub]

Why kessil? I've read threads that say kessil isn't great with sps. I've never had them to confirm but if thats true maybe radions or hydra would be better since you're doing sps.

Still following

 

[newbreefer316]

Bare bottom tanks also contribute to this. White sand will reflect more light back upwards and help distribute the light even underneath colonies. You have to deal with all of the other issues that having substrate has, but it does help contribute to an overall brighter tank...

Would this be a case for painting the bottom of growout tanks white instead of black? I may give this a try on the next pair I put together.

 

[Deaf clown]

I’m following this thread. Mh guy myself and I like t5s but I wouldn’t be opposed to a sbreef bar or reefbrite to compliment the mh.

 

[choss]

Just setting up a new tank with a spectra. Coming off a tank with a Kessil A360we. Can't wait to the results! Following with interest!

 

[steevareno]

Very cool!

 

[A. grandis]

This is the main reason I'm going to use white starboard next time. Love the bare bottom though stretch!

The starboard would grow coralline and the purpose would fail.
Best is a clean sand bed.
Grandis.