I was wondering how many Anubias Nana it would take for there to be any nitrate control? Like for them to eat a noticeable amount of nitrates? I have one in my ten gallon and have been having great luck with it so I was thinking about adding some more and hoping to reap some benefits...

I have only recently begun keeping live plants in my tanks, and the water quality improvments are real. In my 75 gal. I've gone from accumulating 20-40 nitrate per week down to 5-10 nitrate per week consistantly. I LOVE anubias. Not only very tough and hardy, but also grows in low light and doesn't need to be "planted". And its a beatifull, low growing plant. But for nitrate controll I would recommend fast growing plants like hygrophyla, anacharis, hornwort. I'm sure additional anubias-es would help with ammo/ nitrate, but anubias is a slow grower, and some variety will add interest to the tank as well as being better at controling nitrate accumulation.
Good luck!

Thanks! I kinda just want to stick to anubias for now though, because I don't use any special lights on my tanks nor do I use any ferts or plant products and my anubias has been growing! I also don't have substrate so I like that I can tie the anubias to a rock...I will check out the ones you mentioned though...

that's going to be difficult. anubias arent particularly good for nitrate control. it would require a ridiculous amount of anubias plants present in order to put in a dent in nitrates.

there are different species anubias though if you desire variety.