Okay, so my nitrates went up a little bit when I got home. So I picked up another filter last night, a nice 400gph HOB one and now I have that in there with my other one.
I also did a PWC last night and the checked the nitrates this morning and they were down to maybe around 5. Yay!
Much better! I also added 3 more corys so we'll see how they do.
Just wanted to say Good for you for seeking out help then following the excellent advice you were given. It doesn't always work that way. Sometimes people come here looking for what they want to hear and when they don't hear it, simply ignore the advice.
Anyway - Way to go!