About how long was the cycle? Many times, people are excited about adding fish to their tanks too soon. I have always used a good rule of thumb: Let it cycle for 6 weeks, then test it. I know some tanks may cycle faster, but in the beginning stages of a SW
tank, conditions are more fragile than they appear.
Also, you may want to consider only adding 1 - 2 fish at a time. This will help keep the strain off the bio load. In a more mature tank, you can generally add a few more than usual because the tank is ready for it.
If you have ick, you can try to treat it. Although it is better to treat in a QT
rather than the main. If it is ick and you do lose them, you will need to leave your tank fallow (fishless) for 4-6 weeks so it will completely die off. HTH