Seastars don't like FW Exit?

[dirtyreefer]

I just added some FW exit to my tank, and after an hour and a half I found that all the little seastars that are usually hidden in the rock are on the sandbed shriveling up and dying.

I guess flatworms are in the same category as seastars? I didn't think that stuff had any adverse effects on anything other than flatworms.

 

[dirtyreefer]

Nobody else has had this experience with FW exit?

 

[coralnut99]

Tagging along. I was also under the impression FWE only took down fw and crustaceans.

 

[brian3]

Mine did the same thing, all were going belly up. Had to change 30% of the water and run carbon soon after treatment and they seemed to survive. Killed most but not all of the FW.

 

[Swanwillow]

I never had a problem using it in my tanks... all of my starfish made it through.

but, I modified what I used. in a 29, I just squirted a bunch in, waited for the flatworms to start dieing (it was a huge brownish-reddish MAT) and then added the carbon... and THEN started scooping out the flatworms. it didn't work when I followed the saftey instructions (x-many drops for x-amount of time) and I had the carbon on the tank within 2 minutes this way...????

 

[smp]

Interesting Swanwillow. I have a 29 with some flatworms, not nearly a mat though, not nearly. I'm worried that I will eventually have to do something about them though.

What I was thinking was taking my inverts out, taking the fish out, taking the rocks out .. and using FW exit on the tank just like you. Kill the flatworms, then start syphoning and run fresh carbon.
Scrub the rocks, rinse them in RO water .. would that be a bad idea?
It's a 29 and I am moving everything into another 29 gallon (drilled for overflow and adding a sump) so I'll be removing everything anyways .. might as well exorcise the demons while I'm at it.