i have battled the ick in my tank now, and i think i have won (for now). My total fish lost was 5. i am pretty sure the ones that survived the ick and the treatment are the hardiest fish possible. its been 4-5 days since i've seen any spots. all remaining fish seem happy and fine!
i do not plan to add loaches again- i would rather do a tank of yo yos later. so i will probably fill it up with more danios and tiger barbs.
now the question i pose to you is....when can i begin to re-stock the tank? now it has 6 tiger barbs and three danios- 30 gallons