Normal dose is 1 tablespoon per each 5 gallons of tank water. So use 1/2 tablespoon.Thought as much, so he’s in a 28l quarantine tank (accurately calculated to 28.12l of water in a 30l tank)
so half dose will be 0.5tbsp per 20l - or 0.25tbsp per 10l... 0.25 x 2.8 = 0.7tbsp for my 28l quarantine tank - essentially just a bit less than 3/4 of a tbsp...
Sorry, I lack confidence with my maths can someone confirm I have this right? And that it will actually stand a chance of helping my BN?