Dosing Flubendazole

[James_R]

Hi, I’m looking for advice on dosing medication for my 75-gallon (US) tank. The packaging says to use 1 ml/g from the provided scoop per 100 UK gallons, and the Amazon page includes a conversion table for US gallons, which I’ve double-checked. The chart recommends using 3/5 of the scoop or 0.6g for my 75g tank.

My question is:

1. How precise does the dosage need to be for this medication, considering the warnings about overdosing?
2. What’s the best way to measure 3/5 of the scoop if my scale doesn’t measure decimal grams accurately?

I’ve attached pictures of the packaging, instructions, and the scoop for reference

 

[TNG]

If your tank is 75G, the water volume is probably 65G.
If you need 3/5 of the scoop (or 0.6 scoop) per 75G, then you need half a scoop (or 0.52 scoop to be exact) per 65G.
I'd take a scoop and carefully place it on a piece of paper, then separate it in half to get half a scoop. It's not precise but it's close enough.
What you need to know is, is a scoop a level scoop or a rounded scoop?