Am I Overstocked? 110l Juwel Rekord With U3 Filter

[emilythestrange]

Hi i currently have the fish in my signature, and i would like to get a couple more guppies today,
as i've been testing my water and its never looked so good!! (the nitrates) haha.

ammonia: 0ppm
Nitrite: 0ppm
Ph: reads 7.4 on high ph test and 7.6 on normal one.
Nitrate: 20ppm

Also..
could any identify this plant for me? its the only one from P@h that survives buried in sand!

 

[emilythestrange]

bump. i would like to add 2 more male guppies tonight. would that be okay? with the current stocking levels?

 

[fluttermoth]

I really wouldn't add any more fish, except possibly a couple more cories; they really aren't happy on their own.

I think that plant is some sort of cryptocoryne.