Hydroids?

[whowantstoknow]

I've been doing some reading and photo searching and think these are digitate hydroids can someone help confirm if so recommend treatment there everywhere all the sudden this tank just finished cycling has has 2 clowns and 1 ducan and 1 small zoa garden that I'm pretty sure this came in on cause it has what appears to be larger of the same.

 

[Mark Goode]

I don't think so (assuming I'm looking at the right thing), they look green, whereas digitate hydroids are semi-transparent white. That looks like some kind of algae to me.

 

[whowantstoknow]

I don't think so (assuming I'm looking at the right thing), they look green, whereas digitate hydroids are semi-transparent white. That looks like some kind of algae to me.

Definitely not green but not transparent either more brown I got my macro and color lens and got a way better photo here you go

 

[SnappyShrimp]

It looks like some sort of bryopsis starting to grow, that's what mine looked like at first and then got bushier

 

[EnterName]

If your tank just cycled it is really interesting that something is already showing significant growth. Digitate hydroids usually start in their medusa form (tiny jellyfish that look like little stars on the glass) and then will look like tentacles with little hairs attached to rocks.
Colonial hydroids can have a similar shape, but I would have expected semi-transparent tentacles or similar.

Sometimes green algae is colored brown due to diatoms attaching to them, or some bio-chemical reason (nutrient/trace element availability, etc.). The light also makes a huge difference, try using neutral/white light so you don't have to rely on a color lens.

 

[jman2u]

I have digitate hydroids, these are definitely not them (be glad). Digitates are white and long and stringy, usually an unbranching filament