I found this macro algae in the chaetomphia.

[cracker]

Iv'e never seen or hosted this in many tanks over the years. I just discovered the same stuff in an other tank. Not sure if it's growing on a strand of chaeto or the strand is part of the algae. so the stuff I saw in the 75 didn't have the strand. So I don't know maybe not the same stuff.

 

[mborn]

It looks like Ulva (sea lettuce) growing on a strand of chaeto. Good macro for nutrient export.

 

[cristata.reef]

It looks like Ulva (sea lettuce) growing on a strand of chaeto. Good macro for nutrient export.

+1 on Ulva

 

[chris85]

+2 on ulva I think.....Are they like leaves or bulbs?

 

[cracker]

They are leaves , it's not taking over or anything. I did find a little growing on a coral But I have taken steps on that. Thanks found this pic from James Cook university

this definitely looks like the stuff