only 5ppm of nitrates at the end of the week?
hello all. i am new to planted tanks so here goes. my setup is an ongoing process as i learn. I have a 55 gallon with 2- 54w HO T5 flourescents, an emperor 400 biowheel filter, flourite substrate, two mating dalmation mollies, about 14 cardinal/neon tetras, a BN pleco, 5 amano shrimp, a hachet fish, three killifish and about 8 molly babies. I am dosing 5ml flourish and 10ml of excel everyday and 7.5 ml of potassium every other day. I am also doing 50 percent water changes every week.
My problem is i keep looking for what i am missing as far as nutrients and have overlooked the fact that at the end of the week my nitrates are only at 5ppm. Now i am not sure on the type of plants i have. i have vals that are down to nubs and my corkscrew vals are putting out some new leaves slightly but the leaves are drooping. i have about 8 plants and some floating stuff that has red roots that hang down.
Question is what do i do about the nitrates? Start adding nitrogen and closely monitor the levels? Dont change the water everyweek? Thanks in advance for any help.