dschflier November 6, 2007 November 6, 2007 I have been so proud of my system lately. Not because it is the best looking tank around but because I am finally showing some real progress. None of my SPS had been dying and in fact they have even been growing. I will say I dont get the same growth as I see out of some expert setups but I think things are going in the right direction. Then I saw this. I got a bunch of frags about a month ago and all of them appear to be doing well except this one. I just noticed the bleaching for the first time. I moved it to my frag tank. It was pretty close to my tunzee and high up in the tank. Do you think it was getting to much flow? Ihave to check my water parameters tomorrow.
treesprite November 6, 2007 November 6, 2007 my poci frags started doing it after the crab picked on them, and I'm just waiting to see if they recover, which I'm hoping they do.
jnguyen4007 November 6, 2007 November 6, 2007 I have seen SPS bleach from direct flow Interesting.... I will have to take a look at the placement of one of my water pump to see if the flow is directly facing at one of my sps as well. It looks like it might be bleaching as well. Thanks for the info. James
tonkadawg November 6, 2007 November 6, 2007 I've seen high flow doing this, but also too much light (what's your set up) as well as unstable tank parameters. Being that your other corals are fine, I'm thinking it's either the flow or the light.
jnguyen4007 November 6, 2007 November 6, 2007 I've seen high flow doing this, but also too much light (what's your set up) as well as unstable tank parameters. Being that your other corals are fine, I'm thinking it's either the flow or the light. I didn't think light would be a factor because I thought it requires a lot of light. If too much light is also another factor, then I will have to move it a bit away from the main MH light source as well as from the path of the water pump. James
tonkadawg November 6, 2007 November 6, 2007 I didn't think light would be a factor because I thought it requires a lot of light. If too much light is also another factor, then I will have to move it a bit away from the main MH light source as well as from the path of the water pump. James sps do require lots of light, like everything, there can always be too much. It could also have to do with the lighting in the original tank and the photo acclimation in your tank. For example, if the frag came from a tank that was lit by a 150w SE MH and placed low in the tank, then moved into your tank with 250HQI that was right off the water and the frag was high up in the tank, lighting could cause the coral to stress.
jnguyen4007 November 6, 2007 November 6, 2007 sps do require lots of light, like everything, there can always be too much. It could also have to do with the lighting in the original tank and the photo acclimation in your tank. For example, if the frag came from a tank that was lit by a 150w SE MH and placed low in the tank, then moved into your tank with 250HQI that was right off the water and the frag was high up in the tank, lighting could cause the coral to stress. I see what you're saying. In my case, I think the high flow might be more of a cause than the lighting is. My light is only 150W and the light is about 6" above the water level with the sps being about another 3" below the water surface. I'll rearrange the water pump first and see how the sps look in the next couple of weeks. If there's no improvement, I'll take a look at the light next. Thanks again for the clarification. James
YBeNormal November 6, 2007 November 6, 2007 James, Even though you have only 150w of lighting and the bulb is high above the waterline, more light may be reaching he coral than in the previous tank or the spectrum may be entirely different. Regardless of where I obtain frags, I always place hem in a slightly shaded area of my tank for a while then gradually move them to their final location.
ReeferMan November 6, 2007 November 6, 2007 James, Even though you have only 150w of lighting and the bulb is high above the waterline, more light may be reaching he coral than in the previous tank or the spectrum may be entirely different. Regardless of where I obtain frags, I always place hem in a slightly shaded area of my tank for a while then gradually move them to their final location. DITTO
jnguyen4007 November 6, 2007 November 6, 2007 James, Even though you have only 150w of lighting and the bulb is high above the waterline, more light may be reaching he coral than in the previous tank or the spectrum may be entirely different. Regardless of where I obtain frags, I always place hem in a slightly shaded area of my tank for a while then gradually move them to their final location. Hmmm.... Haven't thought about that. I'll keep that in mind. I'm going to play with the water flow first for the next couple of weeks and see if I notice any improvement. If not, then I'll move it to one side away from the direct MH light then gradually move it back and see if that helps or not.
lanman November 6, 2007 November 6, 2007 James, Even though you have only 150w of lighting and the bulb is high above the waterline, more light may be reaching he coral than in the previous tank or the spectrum may be entirely different. Regardless of where I obtain frags, I always place hem in a slightly shaded area of my tank for a while then gradually move them to their final location. Learned the hard way... my first nice sps - a monti cap frag with purple polyps - had been in a fairly dark tank; I know this because I had seen it. I put it up high under my little 70w MH - place of pride! Took off growing like crazy... for about a week - and then just flat out RTN'd. Sigh... bob
treesprite November 6, 2007 November 6, 2007 hmmm, maybe I should reduce flow around the pocis... they are in the area of highest flow and I don't want it keeping them from recovering.
lanman November 7, 2007 November 7, 2007 Looks like STN. I've lost half of a very nice (Dandy) frag to it once, and parts to all of various colonies. Shame when it hits a frag, because you can't really 'frag' part of it off. But with luck, it will just stop, and the frag will start slowly regenerating. My tenuis has VVVSTN ... that's very very very slow tissue necrosis. It has been going on for about 3 months; and I keep thinking it's going to stop - but that colony is just slowly evaporating from the bottom up. I'm going to frag it hard, I guess; no faith it's stopping anymore. Moves so slow, I can only tell from week to week if it's moved at all. I had another acro that started to STN, but only moved about 1" up one side of the colony and then stopped. I had a milli that STN'd all but a 1/2" square on the base (I got several frags off it long before that); and a month later, it's back to bout 1" square. The frags are fine - I'm just keeping the original colony to see if/how it recovers. So that's my guess - it's STN, and if you're lucky, it will stop. bob
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