Hey Stocking a 29 gallon (110 litre) tank, fully cycled. Slightly soft water and low ph. I already have 4 zebra danios, 6 bronze corys and 2 adf I was thinking of adding 6 cardinal tetras and a Bolivian ram (or 2 if a pair is better?) I wanted guppies but think that I'd be overstocked.. Does this sound ok? Any different suggestions? Thanks!