Chloramine breaks down into chlorine and ammonia. Since its normally a small amount of left over chloramine, the amount of ammonia would be very low and should not persist as, in a cycled tank, it should handle it fairly fast. Have you changed your dechlor brand recently?
At .2 ppm total ammonia in a pH of 6.5 and a temp of 28C, there is almost none of the toxic form ammonia (NH3)- you are at .001 ppm and the number at which potential damage becomes a problem is .05 ppm or 50 times what you have (according to the Merck Veterinary Manual).
I tried mightily to get information regarding what your test kit is reading- and failed. I cannot determine whether this kit is a Nessler or Salicylate based kit. If it's the former, then dechlor can mess up the results easily. Can you check the instructions to determine and post the type of kit and/or what form it says the readings are- i.e. Total Ammonia (NH3 + NH4+) or just free ammonia (NH3). If it doesn't say, then is the kit for fresh water only or for both fresh and salt?
The important thing is not to panic here. The odds are good its testing error and even if its low level ammonia it isn't a hazard shorter term. A good clue is not getting any nitrite reading. Excess ammonia should create excess nitrite- because nitrite magnifies the ppm in most test kits, the ppm of nitrite should read higher than the ppm of ammonia. A total ammonia of .2 ppm should translate into close to .5 ppm nitrite as a tank works through a "mini-cycle".
As noted above- a good clue is how the fish are behaving. If there is ammonia, they will not be happy especially if it is enough to be harmful. Sometimes our fish are more accurate ammonia detectors than our hobby test kits.
There is no harm in doing a water change just in case to put your mind at ease.
