Last night about 9:00PM I added the amount of bleach the calculator said to bring the FC up to 20 ppm. Just checked the FC at 10:00AM this morning and it is 20.5 ppm. It is a bit clearer but still has a long way to go. How long should I keep the FC at 20 before I let it drop down to the 5 ppm recomendation for my 60 CYA ? How long should it take to clear up ?
Thanks
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