Can't get Nitrates below 40mg/l

I'd say no...Like Biff said with hers all that stuff will settle in your fuge and you can suck it out or add some CUC to your fuge to eat it...sort of the same theory as the algea scrubber...Grow it elsewhere and it wont grow in your tank.
 
get nitrates down basics:

Lots of rock aquascaped to prevent dead flow areas
good FLOW
do NOT overstock
cheato with STRONG light
Change floss every 2 or 3 days
Use RO water
50% water changes help alot
 
get nitrates down basics:

Lots of rock aquascaped to prevent dead flow areas
good FLOW
do NOT overstock
cheato with STRONG light
Change floss every 2 or 3 days
Use RO water
50% water changes help alot

Where is the floss that has to be changed every 2/3 days?
 
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