Tile sea star issue

[USAFReefer]

Anyone have any idea what could be going on with this sea star? Seems to have some brown junk coming out 2 of its arms. It did walk past a BTA and could have been stung. Would an anemone sting cause this and will it recover if so?

It is a recent addition to the tank, only been a week but looked perfect until it walked past the anemone. I did a 3+ hour drip acclimation and never exposed it to air when I introduced it. Thanks!

 

[Calappidae]

Bear in mind tile/marble star is a fromia species and fromias have very specialized diets in invisible biofilm only present in large established tanks.

What you're seeing could be an indication of it's starvation or tissue damage from said anemone/other animals. (doubt the later)

 

[USAFReefer]

Just wanted to say THANK YOU for that info. That was the critical piece I was missing (food requirements). I was told they eat diatoms at the LFS, and online says algae, but it seems neither was true. I moved it from a 'newish' tank to one that has been up for a decade and the starfish started munching off the back glass immediately and looked fully healed in about a day.. now a month later it still looks perfect and doing great.

 

[rssjsb]

Wow - congratulations! I would think it would be very difficult to reverse that type of damage.