if there is colour to the tissue than you prolly have live frags. keep your water quality high then you have a chance. hopefully you have a lot of current in the tank. put the frags as close to the light as possible.
you do not need to worry, they will not all of a sudden be 9" over night. they are slow grower, even the fast one. my acros will stay mostly closed during the day, but at night they will open up. as long as they open up at least some of the day you have a chance.
keep an eye on them. you will know in a couple of weeks if they are really happy or not. in a couple of weeks they should be starting to encrust the rock that you placed them on.
hth,
G~
you do not need to worry, they will not all of a sudden be 9" over night. they are slow grower, even the fast one. my acros will stay mostly closed during the day, but at night they will open up. as long as they open up at least some of the day you have a chance.
keep an eye on them. you will know in a couple of weeks if they are really happy or not. in a couple of weeks they should be starting to encrust the rock that you placed them on.
hth,
G~