REEF2REEF Saltwater and Reef Aquarium Forum

I'd bet on "And" not "or". Siphon and remove.

Y'all are just the best. awesome!

You didn't kill em. These are what we are pretty confident are #chrysophytes and they always appear motionless.

check this thread for them

Is there movement?
If there is no movement, then this tiny circles embedded in mucus looks like probably #chrysophytes

This worked for me.....definitely not dino's....at least not mostly. Maybe #chrysophytes?

(I could be wrong....you'll not my name is not included with ID results in those searches. )

Manual removal as-needed to keep corals safe while you're dealing with dinos. Check out old threads on the #chrysophytes tag and @reeferfoxx's chrysophyte thread. They may even give up while you're clearing up the dino's.

#Chrysophytes @reeferfoxx ?

(Good link!! Just for anyone following after this.... #chrysophytes are not a fungus, but an algae. You can click that #tag to find other posts that have been similarly tagged in the past, BTW.)

Either run a R2R search for the term or hit this tag: #chrysophytes

(or both!)

Can you post a full tank shot that also shows the scene in this pic? I'm having a hard time seeing this as diatoms (even if it is). LOL

Color would suggest #chrysophytes (which are diatom-like in some ways), but the photo still doesn't have enough detail to say for sure.

Diatoms should also not look green....is that color in the photo real?

If you can, I'd like to also see results of a "shake test" for confirmation. (lots of details for testing on the dino sticky thread...even for cyano too)

Put a sample in a vial, shake it up to homogenize it....leave it alone (ideally under a light) and see if it regroups in a mass or if it stays shaken up. Dino's are the only common thing that will regroup. Cyano or diatoms will not.

I suspect that might be #chrysophytes. Check out some of the posts under that tag and see what you think.

Is the tank pretty new and do you know what led up to the chrysophytes blooming like that?

You missed that metro doesn't work.

Try the search of this thread I put at the end of this line and look at more than 500 posts worth of metro attempts, not one of which ended in a dino-free, side-effect free tank at the end: metro

IMO, make your current metro dose your last and keep reading!

To make the current strategy even worse...

Your bloom looks more like chrysophytes than dino's to me.

But maybe another pic might look different. BTW, you can get a $12 toy microscope (what I have!) and get some great cell phone pics with it if you don't mind holding off further "treatment" until you get a more positive ID.

In the mean time, I'd suggest starting to search on #chrysophytes. @taricha , @reeferfoxx what's your take? Dino's, or...?

Also even though your stuff doesn't look like dino's IMO there's a good chance the treatment situation will be the same or similar.

Check out:

• Dinoflagellates – Are You Tired Of Battling Altogether? and
• A Nitrate Dosing Calculator For Better Tank Health (And Better Coral Color!)

If you have a thread for your tank already, link it in that Dino thread or PM me if you want. (Make a thread, if you don't have one! )