I am pulling my hair out atm i been having nitrate probems for a while and cant get them below 10 . my readings are normaly around 25 using 3 different test kits my po4 is .03 -.1 .i also run carbon and gfo . I have a 180 gallon tank with a 100 gallon stock tank as a sump about 200 lbs of lr total . only have 13 fish i run my skimmer wet and it takes out some real nasty stuff i have a 40 breader fed by my overflow i have cheato in i also have an ats that has been up for 5 weeks i have done 40 gallon waterchanges every day for a week and had no change in my nitrate level also checked my water from my ro/di unit i get 0 tds and 0 nitrates . i tried dosing with vodka and mb7 but after 3 weeks some of my corals started to loose color and it made me worry , i also have a problem with a brown rusty algae on my sand that wont go away either . the tank has been up since dec using a mix of some dry rock from brs and about 100lbs of rock from my existing tank when i swapped over to the 180 . any suggestions or ideas on what i can do would be appreciated . i tried to include as much info as i can think of and i have searched the forums for high nitrate problems and read alot but i am still having this hopeless feeling that ill never get it under control
thank you
Jason
thank you
Jason



