Dynoflagellates

[kdtran]

Anybody have problems with Dynoflagellate with clean water? I have the brown dirt like Algae with bubble and stringy looking. I have been reading on all Algae and think it's Dyno.
From what i read, Dyno can happen in very clean water - still don't know what trigger it but i have been dosing Redsea NoPox (~carbon/Vodka dosing) heavily to drive down my Nitrate previously and there are some mention that Dyna use carbon as food source so maybe that's what trigger it. I have since stopped all carbon dosing.

Now my Nitrate is Zero, Pho is Zero, Ca 500, Alk 10 and Mg is 1600 and pH is 8.1. To me, that very clean water but still with Algae.
Some have recommend hi pH (8.4 and above) and Hydrogen Peroxide with Light out - been driving up the pH and using H2O2 but still not gone yet.
It's hard for me to do complete light out!

Any other suggestions?

 

[wickedfish]

Siphon the stuff with a small diameter hose and I wouldn't keep the water sterile. You sucked the balance out.

 

[toromp]

when i got dynos i just let the tank go for a bit.. no gfo no carbon no w.c. i tried black out but that didnt work too well.

 

[coachfraley]

I had dynos and the blackout worked like a charm. I did 3 days with cardboard taped over the glass.

 

[enseye]

I battled the same type of "brown stuff" for a good couple of months on a newer tank. It's just as you described it. Brown, formed mats on the substrate, and released air bubbles, (byproduct of photosynthesis). If we had the same problem, it would bloom during the day, but almost disappear at night. I tried siphoning it up during water changes, which made the sand look great, but it would return with a vengeance within a day. Though I was cautioned by everyone to manually remove as much as I could because dinos can overwhelm a tank, I just kept an eye on it, let it run it's course, and it eventually burned itself out. Some questions for you...how old is the tank? What type of lighting/age of bulbs? The only thing that I noticed that had a direct impact on the "brown" was upgrading to a superior bulb. Stock Auquaticlife T5's to 3x ATI Blue+ and 1x ATI Coral+ T5's.

 

[GoReef165]

Now I'm battling this DYNO stuff... it's very frustrating. I guess it's some sort of bacteria... not algae. I have black trash bags over my tank now. Today will be day 2. I will leave them for 3 days total...then try and vacuum up any residual on the sand bed. I've read a lot of threads and most have had success with blacking out the light and heavy carbon dosing... so I added a new bag of carbon.. we'll see if this works.

Question is: by totally blacking out my tank, will the corals suffer?

 

[toromp]

Now I'm battling this DYNO stuff... it's very frustrating. I guess it's some sort of bacteria... not algae. I have black trash bags over my tank now. Today will be day 2. I will leave them for 3 days total...then try and vacuum up any residual on the sand bed. I've read a lot of threads and most have had success with blacking out the light and heavy carbon dosing... so I added a new bag of carbon.. we'll see if this works.

Question is: by totally blacking out my tank, will the corals suffer?

Make sure you turn off your doser/calcium reactor or u will pull a sahn(sorry sahn) IME I tried the black out and it returned, I just let my phosphates get high (.01-.02) and the dynos went away

 

[BeanMachine]

Make sure you turn off your doser/calcium reactor or u will pull a sahn(sorry sahn) IME I tried the black out and it returned, I just let my phosphates get high (.01-.02) and the dynos went away

I was just thinking that. Doser or cal reactor off as Sanh found out the hard way.

 

[GoReef165]

I dose 2 part manually. Thanks for the heads up guys.

So corals are alright w/o light for 3 days?