Green star polyp question

[miston]

aka Xenia, right?

I hear these spread like a weed, but I also hear they are fantastic for removing nitrates.

Question is, do they only spread to other rocks they can touch?

Example, if I setup a rock in the back of my tank that was not touching any other rocks, will they just COVER that rock, or will it eventually spread throughout the tank?

thanks!

 

[Jeremy Blaze]

Xenia and Green Star Polyps are two different corals.

However, both are known to be quite prolific, and will spread out a lot. They grow out attaching to whatever they can, rock, sand, glass, whatever they touch.

 

[miston]

are BOTH good for removing nitrates?

 

[Paintbug]

no. most the time neither can tolerate nitrates. but they may filter feed some food in the water collum that normally would decompose and increase the nitrates. make since?

 

[Buster4900]

My GSP has spread nearly as quickly as my Xenia. I have had GSP for 2 years. Started with a couple inch shuare, now about 8 inch circle. Really looks nice, alot of compliments.

 

[Alaskan Reefer]

For long term happiness, either is best isolated on sand where it will have a more difficult time getting a foothold to grow out from.