Best way to eliminate Dinoflagellates while switching tanks?

[bo0sted2g]

I have been battling Dinos in my 30g cube for about a month now. my main course of action is currently cutting back my white spectrum to 4 hours a day and manual removal daily along with reduced water changes to let my nutrients creep up a little bit.

They are not TOO out of control as of now but they definitely do make a daily comeback during the photoperiod.

I know these suckers are the reason some people will completely break a tank down and start over. I just came across a killer deal on a 75G tank so I will have the opportunity to kill off the Dinos during the move!

So anyways I am looking for advice on the best way to make sure the Dinoflagelltes do not show back up in the new tank.

My current plan is to-
-Completely dispose of the current sandbed and start with fresh sand.
-Cycle the new tank with the majority of fresh dry rock, then dry out and possibly acid bathe or bleach the remainder of the live rock from my 30G and then reintroduce the rock after it has been cleaned and dried out.
-Bleach and Vinegar bathe all equipment that will be transferred to the new tank. (skimmer,heater,powerheads)

questions I have are
-How can I eliminate the dinoflagellates from my corals and coral frag plugs?
(as far as I know they are microscopic organisms)
- I heard that freshwater kills dinos..? if so could I freshwater dip the corals during the move to kill them off?


Any tips, suggestions, or advice are greatly appreciated!

 

[karimwassef]

Establish a healthy algae base. Dinos and algae compete for nutrients. But fish and crabs eat algae... they can't eat dinos.

IME, if you got dinos then you likely went super clean trying to remove all N and P to eradicate all algae and got flipped to the dark side. The first step back is to embrace algae and help it thrive.

 

[bertoni]

I would be careful with a freshwater dip for corals. Some might respond badly. A coral dip like the product from SeaChem probably would help a bit. I suspect that thick, fleshy corals would tolerate a freshwater dip better than something like an Acropora, but I'm not sure I'd dip either type.