Diatoms/Dinoflagellates

[cowboy572]

I didn't know where to exactly post this question since I'm not entirely new to the hobby but the issue I'm having is new to me. Currently I have a 150 tall I set up about 6 months ago. I carried pretty much everything over from a 90 gallon I had said up for a little over a year. Well the last few months I have been fighting I thought was cyano, but after some research I believe its both green diatoms and dinoflagellates. I get this green film on my glass and this brown stuff all over my rock and sand. In high flow areas it get this stringy like appearance. Well its been smothering and wiping out my zoa colonies. I've done water tests and everything within norm. So my question is what is this stuff and how do I get rid of this or how can I get it into check. Large/Larger water changes? Lighting? Ph levels? I cant get any answers from my local club, so I turning to RC for some help.

[Dozer1one]

Ok let's start here.
1) you have Dino's the strings in the high flow areas give it away
2) Dino's hate nitrates, with this being said it tells you 2 things you probably have fairly good water conditions and DONT do a water change the more water changes you do the bigger the problem gets.
3) how long has this problem been present and what inhabitants are in your tank?
Snails usually start dying when Dino's are present it's poison to them( except conche snails )
4)conch snails will actually feed on the Dino's but with a bad out break they'll never win the battle BELIEVE ME I TRIED.

5) HERE WE GO THIS NEXT ONE IS GONNA GET ALOT OF RESPONSE

The only way I have been able to concour them is lights out and the use of h202 hydrogen peroxide. 1 ml per ten gallons of water daily until the Dino's are gone once gone I would recommend a dose twice a week for 2 weeks then once a week for 1 week then done. To be clear there is not a whole lot of research on this topic and I'm giving you advise that worked for me with no Ill affects on my mixed reef tank, I will say my goniapora was not happy 20 mins after each dose but fully extended within another 20 mins and all is well now

[danderso]

Please post parameters.
Do you have a protein skimmer? Is it removing anything? Using RODI? Bio load? Lighting?

Whenever I have an issue I go down the line of basics which can be found in the stickies. We are all willing to help but need as much info as possible to narrow down the problem.