LPS Pooping?

Cod Fish

New member
My rainbow open brain ( I don't know the real name) was not puffed up like usual when I got home today and it was letting out all this brown/black slime from it's valves. Is this normal? Is it excreting waste? I cleaned the glass with the mag float and when ran it past it, it let out a bunch more. Anyone?

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Missed a shot of the slime.
 
More than likely. It could be stressed related (zooxanthellae), but the color on that one looks pretty decent so it probably wasn't that.
 
How long have you had it? It is discharging zooxanthellae. This is common with newly introduced corals as they acclimate to the brighter lights of our tanks. If this is a well established coral in your tank, you may want to try reducing nutrient levels.
 
i dont know if there is a difference between what expelling zooxanthellae and excreting waste looks like but my LPS that have the ability to eat large meaty foods excrete waste all the time a day or so after i feed them. they will expel most of the water in their bodies and pull tight to the skeleton to push the waste out of their guts. it should re-inflate and return to normal in an hour or so, if it doesn't then something else may be going on.

I am curious what it looks like when it expels zooxanthellae?
 
If it is brown, it is zooxanthellae. Corals and anemones don't have blood cells, or bile from a liver to turn their poo brown. When/if they poo, they simply discharge the parts of a meal that were not digested. Like bones or scales. The only way they will poo something brown, is if you feed them something brown, and they can't digest it all.
 
i've had my torch expel a dark stringy material in the past, i guess thats zooxanthellae. i am hoping and assuming the caramel like (lol!) stuff my palys expel the morning after a feeding is not the same thing, it definitely looks different. i never thought about the difference before and maybe i should have lol. its a lighter brown, almost reddish (maybe the shells of the rotifiers in my coral food mix? its almost the same color as the rotis).

i assume because i've had a lot of the palys for 6-9 months and they are all healthy, growing and have full color. all my other LPS and SPS are healthy.

is my assumption right?
 
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Dark substance can be either zooxanthellae or waste. It's hard to tell, with the only other signs of coral stress being a key indicator (massive inflation/deflation, recession, loss of color, etc).

LPS can "handle their business" just like anemone's and other creatures that expel waste in a near identical fashion.
 
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