The Puffer Forum

i have a question about salt mixing.if i have 180 litres thats at 1.002 sg and i want to make it at 1.004 sg.by taking out 50 litres what level sg should i make the 50 litres at so that when i add it to the tank it equals to 1.004?????

It is difficult to be terribly accurate on that, you would be much better doing a 50% change, I would guess at 1.007 ish. That is just a guess tho so please wait for someone else to chime in lol