Really sorry to hear.
step 1. run a lot of carbon ASAP. That will clear the toxin from the system. After 24 hours, throw the carbon away, and replace with normal amount. Not sure if you see dead FW floating, if you do, try to siphon them out as best as you can.
Step 2. Wait a week and do Flatworm Exit treatment, again, with carbon section.
if you want to be really careful, you can run another treatment after a week.
PM me with any questions.
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Washington Medical Marijuana Dispensaries