Ick problem with fish?

  Last saturday i noticed that my fish has ick, i raised the temperature, i went to the lfs, i took a water sample and they said my water levels are unstable, and they gave me seachem stabilty. I have been using stability for a week . Today, i noticed that my fish has less ick almost no ick. Should i still treat them?

29g tank running for 8 weeks 2mollies, 3platies, 2danio, 1guppy, 1betta
The thing with ick is that the parasites fall onto the gravel, where they hatch and grow on the fish again. Treatment will kill it all, either on the fish or in the gravel/decorations. I would recommend medication.