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Very interesting indeed. Though as you say, nothing conclusive yet.Me, Sallstrom and one other guy is doing some investigation about different wavelengths importance for the photosynthesis among corals. or at least one of them S.hystrix .
We are also going to see if far red – in this case 735 nm has any importance’s for the coral and I am especially interested to get any indications if this wavelength can alter the morphology of S.hystrix. The other question is if corals (in this case S.hystrix) can use the Emerson effect (induced by this wavelength).
However – the investigation is only in its cradle and its to early to even indicate some results, but I promise that we will come back with an article about these experiment – we have very good conditions for doing a good job with this. The goal is to construct a light (or a LED combination) for the new aquarium at sjöfartsmuseet in Gothenburg that’s is one of the best for corals and for running costs.
However – meanwhile I will report from my own – not so scientific – experiment according phenotypes and lack or access of far red (735 nm in my case)
I have a Pacific Sun 3*145 watts lighting – without white LED. I have notice that my S.hystrix will grow in a very dense pattern – like a hedgehog. On the other hand – the same clone grow in a very slender pattern below MH at the Museum. I took some of these slender S.hystrix and placed them in my aquarium with my lighting – and they show directly signs of growing like a hedgehog. I got some 735 LED an placed one of these just over one of these S.hystrix. Another S.Hystrix is situated in the other end of the aquarium getting no far red. The experiment has run for a month – and the question is – can I see any difference in the pattern? I think there is differences – yes – but is the differences the one I expected? I´m not sure – the experiment has to run for more time.
The pictures show the control and the test S.hytrix and the development for 1.5 months
Without 735 nm
With 735
The test coral had gone a longer time in my aquarium before I got the control, hence it is more "bushy" in the start but I hope it will develope a more slender growth an that my control will be more "Bushy". But it seems that the test grow better in all ways just now
Sincerely Lasse
Hi Lasse,
Looks like Rhodactis Mushroom Coral to me.
Cheers
Hi Lasse,
Looks like Rhodactis Mushroom Coral to me.
Cheers
Very nice Lasse. Keep sharing with us the secrets of the undersea's beauty.
Thank you revhtree
Some new pictures
FTS
Some other pictures
Sincerely Lasse