For the most part don't you run the same risks with softies or LPS?You can get away with the SPS in the 24g tank, just put them up really high and don't keep them in there for too long. Just dip observe and re dip. What some people are doing is the immediately cut the frag off the disk or whatever it is on beacuse the eggs are typically laid on the undersid of the frag or frag plug. Then they dip and remount which will help you cut down on your pests as you are theortically removing the eggs and killing the adults.