20 Gallon 24x16x12
2 Penguin 150 Filters
Ammonia 0
Nitrites 0
Nitrates 0-5
PH 6.8
Temp 80-82
Fake Plants/Decor

I currently have
1 Female Blue Ram (very non-aggressive, she is in the back of the tank most of the day)
2 Mollys M,F (Male is most aggressive one in tank) Female is chill
8 Neon Tetras
2 Glowlight Tetras
2 Endlers

I would like to up my Glowlight Tetra school to 5 and possibly add 2 male guppies. When I did my calculations in AqAdvisor, it said I'd be ok with that stock (98% capacity). Just wondering what you all think about the additions.