My poor starfish has been actuing strange lately...its a blue linkia aboutt he size of an outstretched hand in a 55 gallon tank....lately it has been moving around a lot more then usual and somethign has been coming out of its middle hole thingy for a while now...  it looks like a long wormlikething, however it is mostdefinatly not a worm, i have a feeling its its insides because its not going in..its spewing out.  I have no idea what to do.

Ive had my giant hawaian feather duster for over 6 months and ive noticed a very distinct change in its crown diameter. Close up it look slike the tips aree simply falling off.  right now the feathers are all uneven and brittle looking.  i picked up the rock it was attached to and found several bristlye worms that i took out ...could they be eating my worm and making him sick

if anyone knows anything about these two things could you please answer I dont want my inverts to die

Bristleworms only eat dead or dying/decaying tissue.  They don't attack and kill healthy animals.  I would guess something about your tank isn't stable or "right" and both the starfish and the feather duster are "sick" because of it.  Please give us more info about your tank.

Temp (day and night), PH (day and night), salinity, ammonia, nitrite, nitrate, phosphate, alkalinity?  How is the water flow?  Any recent additions of fish medicine?  Any fish die recently?  Does the water smell good like the beach or does it have a bad smell of any kind?  Do you have young children that could have put a foreign object or substance in the tank?  That's all I can think of for now.  It's all yours Mark.

Steve

Temp (day and night) 78 and 77.5,

PH (day and night) dont have a test for that...am getting one soon

salinity: in the range my instrument instructs

ammonia:zero

nitrite:zero

nitrate:20 , always has been Ive tried almost everything to get it down

How is the water flow:I have the highest power maxijet for my fingercorals especially a proteinskimmerand a emperor 400 at top power

No recent additions Last addition wasChristmas.  

No fish have died maybe a few old snails killed by hermits

 No bad smells

i have no children...im 16  and no foreign objects have entered the tank that i know of

I added a bit of redslime remover a while back but im careful not to use any meds in my tankbecasue of my corals

I added a bit of redslime remover a while back but im careful not to use any meds in my tankbecasue of my corals

Could be part of the problem.  But I'm thinking that lack of live rock or lack of life on the rock could be the problem.  Those two items are not the easiest of things to keep.   Sorry

Adam