NOY's Sun Corals

Well if I didn't find the right man to ask, then I don't know who is... Awesome pics.

I picked up this 7"x 5" Tubestrea 3 weeks ago and I have not seen it open up like yours. They puff out all right but never 'bloom'.

I'm staying up so late now to see if they open up this late. Here's a pic.

20130705_035201


I have a cup of cyclopeeze and frozen mysis and reef plankton all mixed up ready to feed. I've been spraying these on them to entice them, but nothing.. I'm going to bed soon.

What's your secret?
 
still looking very health - its a very nice piece solid tissue and no tissue loss betweeen polyps.

i would suggest the following:

i) get some direct flow on the coral (w/o any food) - i find that this stimulates them

ii) some of polyps looked like they are on the verge of opening or have opened (maybe at night - i had a colony that was only opening about 2 hours after lights out - took over a month to get it to feed regular) - some of the tentacles are actually out. put some adult brine shrimp in direct contact with these polyps either with tongs or using a small squirter (julian's thing is perfect). The food can't bounce off the coral - have to more or less put it there. Make sure you turn off your flow first. See if you get a reaction and whether there is exposed nematocysts that will stick to the brine. I am suggesting brine because i find the nematocyst react really well with brine (i.e. brine sticks to the tentacles like no other food). Use good frozen brine - like hikari that have large sized feed specimens.

iii) get a really smelly prompter food - i use this angel food feed that has clams and it has an obvious smell once i defrost it. Turn off your flow and spray it slowly at the coral so that the particles are still in the vicinity - wait 15 min - then turn on your flow.

iv) if iii) doesn't work - repeat this nightly but use a small container filled with tank water (i use these plastic storage containers from cdn tire) and take the coral out and put it in the container and repeat iii). use your hand to fan the food particles at the coral.

Note - if the coral opens - feed it with your intended feed. I would comment that i dont find sun corals react much to cyclopeez - i was just testing that recently.

sometimes it takes a while - i had one that took over a month before i got it going. You're pretty close - the worst cases are when the polyps stay completely reracted in the tube.

let me know how things work out.
 
Ahh, you give me hope! It truly does look healthy. Thanks for emphasizing the food of choice. I think I have everything except brine and that could draw them out. Thanks noy

Are they particularly picky about water quality? My params are normal with the exception of a slight phosphate reading. The salinity is .22 but slowly reaching target .25. Could this be the cause of their shyness?

How long do they stay open for? I was Ken's again today and was floored at how many Dendros he had, easily over a dozen, each with min. 7 heads. I love how they stay open all the time.
 
I find they are not picky about water quality unless its pretty extreme.

Not sure what you mean by 0.22 - is that 1.022 sg? 1.022 is low and i'm not sure whether that has any relationship to them not opening. 1.024-1.025 is a good target.

SUM/Ken has a new shipment of what's commonly called "fathead dendros" (Eguchipsammia fistula - often incorrectly referred to as dendrophyllia fistula). They are a whole different species. I have one colony and they do open all the time. That's the difference between the "dendros" and the tubastraea's - the tubastraea's are nocturnal and you have to work on them to "trick" them to open during the day. Pricey corals though.

Btw - I see you have a clown trigger as your avatar - do you keep one and if so how long have you had it? Do you run a FOWLR tank for it or have you managed to keep it in a reef environment?
 
...what's commonly called "fathead dendros" (Eguchipsammia fistula - often incorrectly referred to as dendrophyllia fistula.
I've seen the genus Eguchipsammia tossed around some before but never consistently identifying the "same" coral... do you have a source/cite noy?
 
I'm not sure moving them is a good idea. I find that when i move them they get stubborn and won't open for a few days.

You may want to find a spot for them where you can easily access all the polyps. You will also need something to target feed with either a small turkey baster or "julian's thing" - i use both (baster for blood worms and julian's thing for brine). You will have to use a method to keep the fish away (if that is a problem) - either a 2L plastic pepsi bottle cut at the bottom or feed after the lights are out (which i do).

Once they settle and you settle into a routine where you feed them at the same time everyday - the polyps will open like clockwork.

I have a "special" mixture for colonies that won't open up. Its a mix of angelfish food (with clams/meaty items), reef roids, and mysis water. The clams have a distinct odour - i think that may be what the polyps react to. I turn off the flow and squirt some of this mix onto the polyps. I wait about 15 minutes and them i turn everything back on (except the return pump - i let the pumps blow the stuff around in the water a bit). You need to direct one of the pumps at the colony from a distance so it gets a sense of the mixture continuously. I find this routine gets them to open at regular times and after a week or so you can stop with the routine and they will still open.

This mix will dirty up your water so you can't do this regularly - only to get your polyps opening on a routine.

noy,
Please provide some more info on the angelfish food.
 
Wavemakers and Branching Sun Corals
Recently got a WP40 and was able to get real waves going in the tank. I was never able to do that with my combo of Hydor Ev's and Sicce's (using an Apex). Noticed something interesting - the wave motion seems to encourage polyp extension in the branching sun corals (the non-branching ones are still on their routine). Not ready to make any conclusions on this yet and will monitor it.
I concur... after keeping various species of LP non-photos over the years I finally installed a Vortech MP40w, whilst previously had been using my trusty MaxiJets (love those pumps!). Immediately noticed better and much more consistent polyp extension from LP NPC, including the touchy Cladopsammia gracilis colonies.

OfficeTank72913003_zpsb5895064.jpg
 
My Sun coral shows off quite regularly now and during peak photo periods too. Got them trained on your great tip of frozen brine shrimp. You're so right about how sticky these are!! Super easy to feed.

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20130801_015947


Look at them beam! Thanks a bunch, Noy!:wavehand:
 
noy,
Please provide some more info on the angelfish food.

its from prosalt - its the angel diet. its a fine mix of clams, various chopped seafood and smells horrible. prosalt also makes "pacific plankton" - smells just as bad and is just as effective - I feed with this regularly now.
 
My Sun coral shows off quite regularly now and during peak photo periods too. Got them trained on your great tip of frozen brine shrimp. You're so right about how sticky these are!! Super easy to feed.

20130801_020101


20130801_015947


Look at them beam! Thanks a bunch, Noy!:wavehand:

lovely!
 
I concur... after keeping various species of LP non-photos over the years I finally installed a Vortech MP40w, whilst previously had been using my trusty MaxiJets (love those pumps!). Immediately noticed better and much more consistent polyp extension from LP NPC, including the touchy Cladopsammia gracilis colonies.

OfficeTank72913003_zpsb5895064.jpg

amazing looking tank.
 
Finally figured out how to embed video so here's the feeding video again. Feeding bloodworms and a very persistent shrimp

<iframe width="480" height="360" src="//www.youtube.com/embed/H5-NMIB9mSo" frameborder="0" allowfullscreen></iframe>
 
Dendrophyllia Arbuscula spewing sperm and egg

I came home and noticed all my fish "hanging out" near my dendro coral so I looked to see what was going on. I realized the dendro was spewing egg/sperm into the water column and all the fish were eating it (or biting at it anyways). Ran and got this on my iphone. This was fairly continuous and was repeating itself every 5-10 minutes. I captured more it on my DSLR and will have a longer edited version later.

<iframe width="480" height="360" src="//www.youtube.com/embed/LIaICuuyJ04" frameborder="0" allowfullscreen></iframe>
 
updated with slow motion

<iframe width="420" height="315" src="//www.youtube.com/embed/SC2JP-6TY9A" frameborder="0" allowfullscreen></iframe>
 
This thread is awesome!

What amazing photos/videos and coral man! Absolutely stunning! Subscribing for sure
 
Just a side note on sun polyps not opening. I have found that when my sun polyps don't open, there is usually something lurking around bugging it like a tiny starfish or a vermitted snail. Once the critters are removed or move on, they open again.
 
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