For 37% formalin you want to use 20 drops per gallon. Bath should be 50 min max. I usually do 40-45. Remove sooner if the fish seems stressed or not handling it well.
Make sure to airate the water prior as well as during the entire bath.
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Ryan.
300g with velocity t4 for return and a Reflo dart on a closed loop, T5 lights & SRO3000 skimmer.
Current Tank Info: 300g
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