Hi,
For many years was wondering on this question
If my main aims is to greatly reduce nitrate is 1 time 50% change better than 2 X 25% change?
The 2 times means remove 25% add in new 25% then the next day or few days later do the same again.
This is so as to change 50% really need a lot of storage tub or big one.
Please share your views?
Thanks.