I have a 20g tank
5
Neon Tetra
1 Male
Guppy/ 2 Female
Guppy
3
Platy (1 Male / 2 Female)
1 Oto Catfish
1
Rainbow Shark
8 big plants
2 caves/rock structures
(Quite Planted)
I was thinking
Bolivian Ram or Dwarf Cichlid
Plz give suggestions
I'd suggest rehoming the shark. When he gets big enough he will eat your tetra. At 20 gallons with your current bioload you'll need a filter for a minimum 50 gallon tank.
I'd suggest you go to
THIS site to get a better picture of what your tank needs from you as well as what can go in. It is a tank calculator. Be sure to click the suitable species button.
Below are teh warnings it issued about yor tank.
Recommendations/Warnings/Suggestions/Notes:
Warning: Rainbow Shark is too aggressive to co-exist with Neon Tetra.
Suggestion: If you want to keep more than 1 Guppy, minimum recommend male to female ratio is 1:2 (M:F). You will be less likely to experience problem if you get even more females.
Suggestion: If you want to keep more than 1 Platy, minimum recommend male to female ratio is 1:2 (M:F). You will be less likely to experience problem if you get even more females.
Note: Rainbow Shark may jump - lids are recommended.
Warning: Rainbow Shark is not recommended for your tank - it may eventually outgrow your tank space, potentially reaching up to 6 inches.
Warning: Neon Tetra may become food for Rainbow Shark.
Recommended temperature range: 71.6 - 77 F. [Display in Celsius]
Recommended pH range: 6 - 7.5.
Recommended hardness range: 5 - 15 dH.
Warning: You NEED to add more aquarium filtration capacity!!!