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Old 09-03-2015, 01:52 PM   #1
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sick starfish

I have a starfish (not sure what kind), that has been in our 100 gallon tank for over a year. He has done fine until about two months ago when his legs started getting shorter. It looked like the tips were either being eaten off or rotting off. Now all of the tips are losing skin and showing the pink flesh underneath. Does anyone know what this is and what to do about it?
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Old 09-03-2015, 01:58 PM   #2
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Has this star recently been moved or picked up and exposed to Air?
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Old 09-03-2015, 02:05 PM   #3
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No. never been moved, picked up, or exposed to air.
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Old 09-03-2015, 04:34 PM   #4
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What are your tank parameters , have there been any drastic changes
check ammonia , phosphates alk ect

A lot of stars seem to starve this can be a possibility loosing flesh is a good detection

exposed to air could be another thought

these are all possibility that are popping into my head

Salinity is it high or low
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Old 09-03-2015, 05:14 PM   #5
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sick starfish

The water quality in the tank has been pretty stable every time we have checked it. We have done that two or three times since the starfish arms started getting shorter. No exposure to air either. I can do another water analysis but in the past that has not seemed to be a problem.
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Old 09-03-2015, 05:46 PM   #6
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Sadly, once a starfish start to fall apart like this there isn't much hope of recovery. I would be concerned about the parameters or air contact, even at the store. They are also very sensitive to chemicals, so products like red slime remover can be of harm towards them.
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Old 09-03-2015, 06:02 PM   #7
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All inverts are very sensitive to water quality this why I mentioned it

Have you done anything different to the tank in the last few weeks sit back and think as we all do this , I would remember the big stuff but the small things we don't think makes a difference sometimes does make the difference
I keep logs for everything I do so when I start to see a decline I can basically pin point it knowing when it started along what I did in that time period all this info helps find the problem ,
hate saying this once stars start to decline there's no coming back
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Old 09-03-2015, 06:22 PM   #8
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sick starfish

Good advice. I will have to try to get into my memory banks and see what we might have done differently. I can't remember if it coincides exactly with the starfish decline but one thing I did about the time that this started was replace an urchin that died. Don't know if there is any connection to it dying or with the introduction of a new one. Since the starfish started having problems I have introduced yet another urchin and another starfish. All three seem to be doing well. Thanks for the advice. I'll see if I can remember anything else that might have upset the starfish stability.
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Old 09-03-2015, 06:49 PM   #9
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Like hank also mentioned about if any type chemicals including anything that may have been dosed ,
have you or anyone used Windex on or around the tank, even air fresheners that squirt/spray if it got into the water it can cause damage
as odd as it may sound these can also cause things to die off
unknown reasons inverts die are usually do to water issues
you need to learn how to read your inverts , coral , and fish you would be surprised how much they can tell you
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Old 09-03-2015, 07:17 PM   #10
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We know there is a problem but haven't been able to isolate it. We have had coral and anemones die, and a few fish along the way. We have had the water analyzed several times, replaced all the bulbs with new. As far as I know no one has used any chemicals to clean the glass. Water changes are done regularly. Hmmmm, I guess we just keep searching. No doubt it needs just the right tweak and we haven't found it yet. Thank you all for your help.
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