Hi, I have a 36 gallon bowfront tank w/ lemon tetras, 1 angelfish(year old), platys, BN pleco and I added 4 rummy nosed tetras this weekend. Tank has been up for 6 months. All are doing well but I am struggling to keep my Nitrates down (in this tank & my 20 gallon). My Nitrate level isn't too terribly bad & I have a hard time reading these color tests, but I think it is in the 50-60 range. I would like it to be in the 10-20 range, preferably 10. I have 2 HOB filters a Fluval c series 40 & a penn plax 20. I have added a purigen pouch to the Fluval & I have also crammed in some smaller Matrix media in the penn plax filter since the month after I started it up. I am on well water & have tested it for Nitrates but it comes out clear, 0 ppm. Also have hard water with extra calcium but have not tested the hardness in a while but I know both hardness levels are high...maybe in the 8 + range(?). PH is roughly 7.5 - 8. I have read that extra aeration will help bring the nitrates down as well as the water changes. It seems like if I do 3 water changes in a week it still doesn't bring the level down too much, maybe by 10 if I am lucky. My question is will the extra aeration help? I have started to run my Hydor volcano & the fish now seem more active (been 2 days). Do I now have enough aeration to help my nitrates? I was thinking of using some Tetra EasyBalance Plus or AmQuel plus to help out too but I'm not sure if this will help or not & I'm a little nervous about using the EasyBalance as I am afraid it will kill my angelfish based on some reviews I've read. Should I add a bubble wand? I'm not sure if my rummies will like it tho. I also do not run the volcano at night cuz the tank is right next to my bed & is a little noisy. Does anyone have any suggestions? Thanks!!