DT changed to refuge same sand?

Ok so I having problem with cynobaxteria not bad, but it is in
my refuge I have set up.


35 dt is going to be my refuge soon for my new 65dt. My refuge will trashed or sold.
There may be a problem with diotoms as well.
Will pods help???

Question!!!

Should I save the sand in my 35dt for the refuge on the new 65dt or start over.new

 

I wouldn't worry about cyano in the fuge, TBH.

 

Use new sand, but save a cup of your old sand and toss it into the new sand to seed it with good bacteria etc.

 

All new water???

One thing I was thinking about is the fish and coral move.

So I was thinking about keeping the fish and corals on the fuge
and cycling the new tank and old dt (new fuge) for a week or so but
it might be to crouded in my old fuge with the croral and 3 fish... Crabs snails ect...

 

If you don't disturb the sand and keep it covered with a little water then I don't see any issue with reusing the sand.

 

So I was thinking about keeping the fish and corals on the fuge
and cycling the new tank and old dt (new fuge) for a week or so but
it might be to crouded in my old fuge with the croral and 3 fish... Crabs snails ect...

You thing with the old sand, new sand and the old rock
would be good with one week cycling?

I just don't want to keep every one is such a small refuge.
20g fuge in three sections.

Or cycle the 65g then just hook the new (old dt 35g) fuge???? And drop every one in???

 

I changed my tank from a 26 to 75 with the old rock and new sand all around with no issues and no cycling. If you keep the rock under water while switching tanks you should have no problem.