Zoa stretching

tdm850

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#1
Hi all,

I've been neglecting my 24g nano cube in my office as I have been busy and traveling. The zoas used to be thriving and now they all stretching upward and look skinny. I don't think they are starving for light as their skirts are curling up. The funny thing is all zoas are doing this: grande palyps, kedd red, eagle eyes, radio active dragon eyes, etc.

I used to ATO with kalk solution. Since I was traveling, I told my wife just to add RODI water instead to make her life easier. I don't know if drop in alkalinity will make them do this. The metal halide bulb is getting old and need to be replaced, but it shouldn't be the cause. I started dosing kalk again a couple days ago and hopefully will see some changes.

And no, I've not checked my pH, Ca, and alkalinity as I just got lazy. I will do so tomorrow.....

Any comments are appreciated.

 

tdm850

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Feb 11, 2011
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#7
They sure look like they do, except their skirt are curl up instead of open wide. All the palyps have been in the same position in the pass year and had no issue until recently. As I mentioned earlier, the light bulb is on its last leg. Is it the cause?
 
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