Sand shifting star died?

swanny06

New member
So I found him today and he didn't look right, come to find out he was dead. I've only had him a week so I'm not really sure what went wrong. When I added him in I used the drip method so he wasn't introduced too quickly.

My tanks at:
Ammonia: 0
Nitrites: 0
Nitrates: 40(a little high I know)
Salinity: 1.027

Any ideas why he could have went?
 
I've been doing some water changes to try and get them down. They're slowly making their way. The bed is about 1.5" deep and the tank is about two months old. Finished it's cycle a month ago.


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Sounds like it starved to death possibly. That's not a very deep sandbed and the tank isn't mature enough, Nitrates a little high and Salinity needs to come down a hair. I'm not so sure that the nitrates and salinity was the culprit but being such a new tank it probably ran out of a food source without feeding it.

Here's what LiveAquaria has to say:

The Sand Sifting Sea Star, at first glance, seems to be drably colored like most bottom dwellers. But closer inspection reveals a striking beauty and serenity to the alternating bands of brown and beige that dress this invertebrate's thick, spine-covered arms. Like other starfish, Astropecten polycanthus efficiently consumes mass amounts of detritus and uneaten foods. This nocturnally active member of the Astropectinidae family can move large amounts of sand as it burrows into the substrate in its search for food.
This peaceful omnivore will effectively clean even the largest home aquarium of detritus and left over food. Like other starfish, the Sand Sifting Sea Star will also consume small invertebrates, including shrimp, urchins, mollusks, bivalves, or other small sea stars. As such, the Sand Sifting Sea Star should be actively fed a varied diet consisting of natural food sources, especially in well-established marine aquariums. Otherwise, this voracious feeder will quickly clean your aquarium of detritus and then burrow into your substrate, starve, and eventually begin to decay.

To foster its feeding habits, the Sand Sifting Sea Star should be kept in aquariums with large, deep sand bottoms of several inches in depth. Since it is slower moving than most fish, the Sand Sifting Sea Star should not be housed with natural predators, including Puffers.

Like other invertebrates, the Sand Sifting Sea Star is very intolerant of sudden changes in oxygen levels, salinity, and pH and cannot tolerate copper-based medications. To successfully acclimate new specimens to your aquarium, use the drip acclimation method and never expose the Sand Sifting Sea Star to air while handling.
 
^^This. Tank is too young for a sand sifting star, IMO. Without a fairly large, established sand bed to feed from, they will eventually starve. Not saying that's for sure what did him in, but something to consider if you are wanting another one.
 
Sand sifting star is a poor choice. They generally do two things. One, they deplete your sand bed of beneficial fauna. Two, once they've done that, they starve and die.
 
Sand sifting star is a poor choice. They generally do two things. One, they deplete your sand bed of beneficial fauna. Two, once they've done that, they starve and die.

+1

I had one for over a year in my established biocube, he did well and even gre quite a bit. Then I moved tanks with all new sandbed and dry rock, I did add a couple cups of my old sandbed to seed the new, but within a year it killed all the micro life in my sandbed. Then it started loosing arms till it slowly starved to death.
 
Sand sifting star is a poor choice. They generally do two things. One, they deplete your sand bed of beneficial fauna. Two, once they've done that, they starve and die.

+2... They will starve to death in almost every tank... Don't buy another one
 
I'm confused. The Live Aquaria post states "Actively fed with natural food sources". So can we not "actively feed" the animal, rather than sit by while it consumes everything and starves to death? I mean I get it, in a closed system he can only fend for himself so long until everything is eaten, but why can't they live full happy lives if "actively" fed alternative foods?
 
There are a lot of specimens that we can't keep because of their specialized diet. The company needs to make money so they won't share the grim details. These stars should be left for large tanks, with mature sand beds. They get quite large and I would venture a guess that you would need 25 sq ft of sand bed (with no competition) to keep a single full grown one alive for a long period of time
 
There are a lot of specimens that we can't keep because of their specialized diet. The company needs to make money so they won't share the grim details. These stars should be left for large tanks, with mature sand beds. They get quite large and I would venture a guess that you would need 25 sq ft of sand bed (with no competition) to keep a single full grown one alive for a long period of time

So they will not eat any form of introduced food that can be supplied by us? None at all?
 
I have one and its been doing great in my 40B with a 1-1.5" deep sandbed..
Its growing very well and is very healthy.. tank has been setup for maybe 9 months now and he has been in there since almost day 1..

I had one in my old tank (120G 6ft long) which had high nitrates (40-50+) and its arms fell off and died over the course of a few weeks.. I don't believe they tolerate nitrates well at all..

And of course.. Some stuff does just die and we won't know the cause..

Mine likes to have "fun".. He started climbing up the corner of the glass till he got to the top and then would just free fall backwards.. Now he has found out that if he does that on the back glass in the corner that he can fall into the stream of the powerhead and gets tossed like a ninja star across the tank.. He does that each night just before the lights go out for fun.. Seems to really enjoy it as he keeps coming back each night..
I need to get a video of it..Its very funny watching him hurled spinning across the tank..
 
I'm confused. The Live Aquaria post states "Actively fed with natural food sources". So can we not "actively feed" the animal, rather than sit by while it consumes everything and starves to death? I mean I get it, in a closed system he can only fend for himself so long until everything is eaten, but why can't they live full happy lives if "actively" fed alternative foods?

LA has been known to be mistaken :). Stars in general (other than bristles) have a very poor track record of survival.
 
Mine likes to have "fun".. He started climbing up the corner of the glass till he got to the top and then would just free fall backwards.. Now he has found out that if he does that on the back glass in the corner that he can fall into the stream of the powerhead and gets tossed like a ninja star across the tank.. He does that each night just before the lights go out for fun.. Seems to really enjoy it as he keeps coming back each night..
I need to get a video of it..Its very funny watching him hurled spinning across the tank..

When they start climbing the glass, their looking for food. Which typically means they devoured everything in the sandbed already.
 
Actively fed with natural food sources doesn't mean YOU feed him. It means he actively feeds on natural food sources and if they haven't existed since he was wild-caught, he's starved to death. YOur tank won't be ready for a sandsifter of any type who gets all his food from the sand until it's going on a year old.

In general avoid starfish in your tank. The good ones are super-hard to keep and the ones that will eat your specimens will starve if they don't eat them.
 
When they start climbing the glass, their looking for food. Which typically means they devoured everything in the sandbed already.

Nah..
It just likes having fun..
Its been doing that for months now in the one corner.. Just a few days ago found the fun in the powerhead (because I moved some stuff around probably)..
Does it just once.. each night right before the lights go out.. like clockwork and goes right back down into the sand...

I've got some real characters in my tank.. My urchin and I play "hide the floating thermometer".. He finds it and carries it around for a couple days.. Then I pull it off him and stick it in a different spot and hes got it back on him again in a day or 2.. Sometimes he likes to take it low in the tank and let it go.. thus shooting it to the surface like a rocket..
IMAG0280.jpg
 
Just being curious, isn't 1 week too early for starvation?

Although I don't know how long he has been in the shop

It depends on how long it was in a tank prior to the posters tank. It could have been sitting for weeks in not so ideal conditions. This is if it starved to death. Sand sifting stars are a touchy thing. I think research on anything you intended on adding to a tank is very important.
 
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