White stringy algae on frags

[skylan]

I have some frags in an observation tank that I got 3 weeks ago. They were dipped in coralrx before adding.

I noticed some white stringy algae on one of them and it's popped up a little elsewhere. It does not blow off with a turkey baster, is somewhat rigid, and doesn't really come off with a toothbrush either. I have some crysophates(sp?) confirmed by microscope which is what the brown stuff is that looks a little like dinos. Any idea what this could be and how I fight it?

 

[Tahoe61]

That looks more like Dino and or diatoms. Astera Snails and Counch for diatoms. If you're dosing amino acid coral foods I would stop. Test nitrate and phosphate.

Is this a new tank?

 

[skylan]

It's been up for 6 months. I have some hermits and nas snails in there and occasionally some fish waiting to enter my display.

Parameters yesterday were:

SG 1.025
Mg 1440
Alk 8.1
Nitrate 8.2
Phosphate 0.12
Calc 425

I have dinos in my DT and bought a microscope. I posted pictures of the dino looking brown stuff on the macks dino Facebook and was told not dinos, but chrysophytes

 

[ColorMeGone]

Those frags need a peroxide dip in my book.

 

[skylan]

I can try, any guidance for concentration per coral? I have a mushroom 2 zoas, torch, hammer, and 2 trumpets

 

[ReeferDog]

This is the guidance I've used for peroxide dipping. Don't forget to wash frags in tank water (not RO) before returning them to the tank.

Peroxide dipping guidelines (for corals)

A while back Justin Credabel published this chart detailing the concentration of hydrogen peroxide appropriate for dipping various genera of corals. I've used these guidelines myself a few times to remove algae from coral frags and it's been quite effective. Justin Credabel's hydrogen...

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