I done my denitritor project for my 2.5ft tank. Hooked up for about 3-4 months and nitrate is still hanging at 50ppm.
Did my 6" DSB refugium with lots of microalgae with lights at 24hrs and now after a month, nitrates at less than 10ppm. Threw away my DIT denitrator already...
Now to source for a good skimmer.