re: flatworm exit
i've done two separate treatments and I still have some. the first treatment i did with 1 drop/gallon as per instructions. Lots left after treatement

. I did second treatment at 2 drops/gal which killed most of the left over...... but alas, there are still some left

. My next option is at 3 drops per gallon but unfortunately i have ~300 gallons of water which means that it will cost me ~$90 for the treatment (each bottle has about 300 drops) . Plus my first two treatments which has been a total of three bottles so i'm looking to spend $180 in flatworm exit this year
re: acro
if its bleaching from base and spreading quickly, cut your loss .... literally. Frag and save the rest is my advice to you. I have had numerous pieces start dying and it spreads quickly and eventually the whole piece dies.... partly due to laziness but mostly due to being hopelessly hopeful that it will stop. if its spreading quickly, minimize your loss asap cuz by the time you regret not doing it, its gone.
good luck
cwlee