Hello all! I have a newly established tank with 3 mollies (1 silver and 2 dalmatian). I believe they are all females, but being a newbie to the hobby, I wouldn't bet on my opinion.

As these are the first guys (or gals) in my tank, I do not plan on getting any more fish for at least another week or two, but in the meantime I am trying to do all the research I can to determine what the next addition to the tank should be. So, here I am asking for your opinion. A few facts to shape your opinion:
- 26 gallon bow front (tall tank)
- Lightly planted now, but plan to work up to moderately planted
- temp kept at 80, water is on the hard side, did put aquarium salt in at 1/2 teas per 5 gallons for the mollies
- my family would like to see some colorful fish
So - your thoughts??