Unpleasant surprise

I have heard the issue, both ways....I am not sure on the specifics, but there is somthing about gram negative and possitive bacterias????

I had no issues at all using it, and havnt heard of (personaly) anyone else who has either.

I left my skimmer running and dosed 2 seperate doses, 2 days apart. It left and hasnt shown up since.

Cool, I'll give it a shot.

Left the lights off for 48 hours, 20% water change, stopped feedings, raised my ph and as soon as my lights came back on, and the cyno came right back. It looked as if it was getting worse.

So I picked up some maracyn and have treated the tank for the past 2 days and I have enough for one more treatment. It looks as if the cyno is unaffected.

How long to see some results?

how much flow do yo have in your tank... if not much that also helps the stuff grow easier as well.. if you have the means to increase the flow by adding a powerhead that might be of help also

I've got 2 Koralia 3's (one in each corner) and a Rio 2100 as my return (3.5' from the sump). It's approximately 2100 gallons being circulated per hour. Stuff whips around in this 80 gallon pretty good. The majority of the cyno is in areas that have the most flow.

Myacin effects the gram-positive bacteria. Whereas denitrifying bateria in a reef tank are gram-negative and are not normally effected. With that said I would dose in very small amounts and give it a day to see if it worked before increasing the dosage. Your skimmer will go nuts when you turn it on. You may want to follow up treatment with a significant water change.

I don't think any amount of flow will completely keep the stuff from growing. There always seems to be some spot where it will grow regardless. I have had it grow right on the nozzel of my return pump.

Yeah the skimmer is going crazy. I had to adjust it to skim very dry.

I am going to do a 25% water change tomorrow and try to siphon as much as I can.

The more I look as this stuff the more it looks like dinoflagellates.

Anyone every try Poly-Ox?

http://www.kentmarine.com/products/kent-poly-ox.htm

I just placed an order with reeftopia.com to significantly boost my CU crew as well.

I also have a gfo and a carbon reactor from bulk reef supply that should be here tomorrow.

God! This stuff is hideous!

Sounds like you are on the right path. I think dinos are brown and more spotty than the slime you show in your pics. You could have both.

It took my tank about a week to get rid of the majority of the cyno after dosing the marycin twice.

A little stuck around for about a week more, but finally gave up and left.

It's definetly lightening in color and shrinking in size. Can't wait till this stuff is gone....