Looking for feedback, Vodka / Carbon Dosing, Big Tank, Big Nitrates

[houlisam87]

If you want to solve your high NO3 problem, do the Maximum water change
90 % without catching any fish out of your tank...
That will do the trick, instead doing all the dosing try to get the result many months later hopefully,
Do that and maintain with carbon dosing whichever you prefer will all work fine
Just a suggestion and it works for me , which I took all the sands out afterwards.