new goni-bleached?
- Thread starter fishfanv
- Start date
John Kelly
Goniopora Aficionado
Yes, unfortunately.
It has no zooxanthellae at all and will not extend fully until it can repopulate zoox.
It has no zooxanthellae at all and will not extend fully until it can repopulate zoox.
John Kelly
Goniopora Aficionado
Gently shade your coral from direct light and feed it regularly.
I'm sure Kent chelated Iron and Manganese probably helps corals in general to repopulate zoox to some extent, just as it helps algae to grow, but if you were to use it I would only dose 25% of the recommended amount or less (= very little). Contrary to popular belief, I personally do not believe it is a "cure" for anything related to Goniopora, and I think Julian Sprung's bleaching "hypothesis" regarding Goniopora stokesi is backwards. It is not a substitute for food either.
Your coral vite contains Iron.
I think what has happened with your particular coral is not that it slowly bleached over a period of time, which does occur, but was exposed to too much light all at once and expelled its zooxanthellae quickly. It happens frequently.
JENnKerry
Premium Member
Sorry but Sprung has me sold on this one. I watched a video from him speaking at a seminar from a few years ago. With all the tests and experiments that he has done and documented, how could you possibly say that?
And like I said in my earlier post, we did dose it, and yes it did work.
I see that you're going to IMAC this year. Perhaps you could discuss this with Sprung himself
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John Kelly
Goniopora Aficionado
I know you've mentioned the video before, but I can't remember where I can get a copy. He did a presentation at IMAC 2003. A portion of this can be downloaded from imac.org. From what I listened to, the "Iron and Manganese" portion of his presentation consisted mostly of "If's", "Maybe's", and "Could be's". I highly respect Sprung, don't get me wrong
, and he may have changed his hypothesis or proven it since then, but as far as I can tell, it is still remains a guess. I began typing out an explanation of why I say that, but then had second thoughts because this is the type of info that someone may desire to publish prematurely.
Let me ask this.......HOW do you know it was the thing that worked?
This is one of the topics that I am going to cover in my presentation; with photos....lots of them. Actually, I tried to email him at twolittlefishies to ask a few questions and never received a response.I see that you're going to IMAC this year. Perhaps you could discuss this with Sprung himself
JENnKerry
Premium Member
Because nothing else seemed to work. We tried additional feedings and moving it to a more shaded area. But once we saw that he recommended the additional suppliments, we tried it and it worked. Coincidense? Maybe, but no one really knows. All I do know is that was the last thing we tried for it and all of a sudden it started to color up.
fishfanv
New member
jennkerry, did you put your goni in the shade to repop its zoox? and how much iron & manganese did you dose, was it the recommended dose as instructed on the bottle?
i'm not sure how long the goni was in the lfs before we got it. but it was definitely like that when we got it. i have been feeding it 2-3 times a week with dt's live phyto, microvert & cylop-eeze at the same time i feed the other goni. is that often enough or should i do it more often than that? it still hasn't extended more but it's definitely not doing any worse.
i'm not sure how long the goni was in the lfs before we got it. but it was definitely like that when we got it. i have been feeding it 2-3 times a week with dt's live phyto, microvert & cylop-eeze at the same time i feed the other goni. is that often enough or should i do it more often than that? it still hasn't extended more but it's definitely not doing any worse.
justincognito
New member
I have used the Kent Iron on bleached or stress Goni's and yes they did color up, in fact other goni's that were already healthy got browner probably from more zoaxanthallae. I try not to use chemical additives but i must admit i noticed an effect.
I would also try blending up chaetomorpha and straining through a fish net and feed that to the goni, they LOVE it. I imagine this would have a good deal of iron in it. I would also dose the system with good quality phytoplankton since this also has a large amount of bio available iron in it. The goni won't eat it directly but will ingest it with the zooplankton it eats.
I would also try blending up chaetomorpha and straining through a fish net and feed that to the goni, they LOVE it. I imagine this would have a good deal of iron in it. I would also dose the system with good quality phytoplankton since this also has a large amount of bio available iron in it. The goni won't eat it directly but will ingest it with the zooplankton it eats.
John Kelly
Goniopora Aficionado
I think we got off on two separate things. I do believe that Iron and Manganese supplements help Goniopora, and probably any coral that hosts zooxanthellae, to repopulate zoox when they are bleached. I don't believe it is a "cure" for Goniopora bleaching. I have performed some experiments in a few small tanks and can say that I have seen Goniopora show a feeding type response to iron and manganese dosing......I can also say that one of the tanks (and my bleached/receded goni too) developed a huge algae problem. Another type of goni closed up for three days after adding iron. They appear to be quite sensitive to iron and/or manganese, but I still don't think it is a cure for the occurence of the bleaching problem in general. That is why I suggested to fishfanv "I'm sure Kent chelated Iron and Manganese probably helps corals in general to repopulate zoox to some extent, just as it helps algae to grow, but if you were to use it I would only dose 25% of the recommended amount or less (= very little)."
John Kelly
Goniopora Aficionado
That sounds interesting. I have a couple of goni's in a tank that also has caulerpa in it. When I harvest the caulerpa, they usually stay closed for a day.... I don't do it to feed the goni or as an experiment or anything, I just need to get rid of excess macro and noticed the reaction.
John Kelly
Goniopora Aficionado
Fishfan,
Do you have a picture of your other goni?
Do you have a picture of your other goni?
John Kelly
Goniopora Aficionado
I tried a version of this...but I didn't strain it. First I took a patch of "clean" looking chaeto and rinsed/scrubbed it as good as I could in a bowl of RO/DI water. Even though it looked like clean chaeto, a bunch of grainy stuff came off, tiny snails, tiny feather duster tubes etc... I then used a little RO/DI in a blender and liquified the chaeto into tiny particles. It had kind of a seafood smell. All of my goni's showed some inflation reaction to the liquid, but I wouldn't say to the level of "love". The larger polyped goni's did not consume any of the tiny bits of chaeto; it was difficult to tell on the smaller polyped. I meant to test it for iron (forgot), but ended up testing it for nitrates instead :eek1:. I only put 5 drops of liquid chaeto in a test tube with the rest being RO/DI water (nitrate free) and the nitrates came out to be 20ppm. I had just used a whole syringe full in my tank (lol). It would take some in-depth experiments to really know what sparked the feeding response. Also, my brittle star showed a slight reaction to it if that says anything.
