I'm not really sure I understand your question, but I'll take a stab at it and if I'm off base, you can clarify. First, let me say that a 10g is probably not a good starter tank for SW
. There are many more water parameters that have to be kept in line with SW
and these parameters will change much more quickly in a small tank. Having said that, I started with a 10 so it can be done...it's just a bit of a gamble.
Are you intending to use the "dead coral" in lieu of LR
? If so, as long as you have enough of it, I don't see any reason it wouldn't work for your biological filtration. If the coral has been languishing in the bottom of an abandoned SW
tank for a long time, I wouldn't expect there to be much left alive on it...even bacteria. If you were intending to attach live coral to the dead coral, it'll attach to it fine...just as it would to any hard substrate.
As far as moving the corals, different corals "ship" differently. Some are quite hardy and will handle a move well. Some do not do so well...it really depends on what type of coral you have. The most common way is to bag them in tank water and move them that way. You can move the LR
in buckets of SW
. The sandbed will be OK for a while as long as you leave enough water in the tank to cover it.