flatworn exit

[rduic]

ok i had an eairler post and ive decided to add the flatworm exit to my tank.

i live in canada and that stuff is very hard to get here!

my friend gave me some, i added all of it to my system.

my actual water volume is 220 gallons
i added about 200 drops

i noticed alot of flatworms suspended in the water

i waited 1 hour than added my carbon.

now i was wondering how long i shoudl wait until i do a water change?

and shoudl i do another dose in the near future to enshure my kill rates?