Hydroids?

[Kimberely]

I noticed a few white spots on the glass a few days ago and didn't pay much attention to them. Today the glass is covered with these tiny white snowflakes. Are they hydroids and methods for controlling them?

 

[nautical_nathaniel]

Looks like hydroids to me.

I believe reduced feedings will thin out their numbers.

#reefsquad

 

[Tahoe61]

Hydroid jellies tend to die off or change stage as the tank becomes established.

 

[Kimberely]

Hydroid jellies tend to die off or change stage as the tank becomes established.

Thank you.

 

[MaddyP]

Hydroid jellies tend to die off or change stage as the tank becomes established.

This has been my experience as well.

 

[samnaz]

Cool!

 

[Kimberely]

My understanding is that they're harmless unless you keep dwarf seahorses or other tiny fish. I don't know if they'll damage the corals I'm adding in a few weeks. Haven't researched that far yet.

 

[Lovemyreef2015]

We had these in our nano tank when we first set it up. It got worse before it got better. It took a few months for all of them to disappear but they will on their own.

 

[nautical_nathaniel]

My understanding is that they're harmless unless you keep dwarf seahorses or other tiny fish. I don't know if they'll damage the corals I'm adding in a few weeks. Haven't researched that far yet.

They can sting corals which will make them upset and not have good polyp extension

 

[Kimberely]

They can sting corals which will make them upset and not have good polyp extension

That would explain why my xenia isn't opening up fully.

 

[nautical_nathaniel]

That would explain why my xenia isn't opening up fully.

That could also be a result of water parameters too

 

[Kimberely]

That could also be a result of water parameters too

It's opened up now. The full spectrum lights just came on a while ago. I keep a close eye on the parameters.