Family wants me to add more fish ???? Is it possible to add more fish? Like a small school of smaller fish like killifish or maybe otocinclus? Ember tetras or Chili rasboras? Corydoras? Kuhli loaches? I wanted to add 2 red razer nerite snails but nope, they want FISH fish.

Water parameter: 78-80F GH: 80 KH: 120 PH: 7.4 Ammonia: 0 ppm Nitrite 0 ppm Nitrate 5.0 ppm

My tank is a 20 gallon long tank and these are my fish currently living in it:

• 10 blue emperor tetras
• 5 yellow shrimps
• 1 orange dwarf mexican crayfish
  
• 1 male honey gourami
• 1 female thick lipped gourami
• 1 blue mystery snail
• and a bunch of pest snails which I sometimes remove.