Question about the fish!!

Question
Hi, I have some question about my fish tank, first of all I have 2 tanks, one is a 120 gallons that is fully cycle and ready to put some fish in and another is a 20 gallons tank. Do you think it will be a good idea to add The Gold Datnoid fish or the siamese tiger fish in the 20 gallons tank with a leopard Ctenopoma?? I can't find a really good tank mates that fit his personality. Others may say that he is semi-aggressive to an aggressive fish but he is been good with me so far and he is kinda shy toward other fish. My 120 gallons tank has 3 parrots fish, 2 algae eaters, 1 black ghost knife, 2 flying foxes, 3 german blue ram, 1 firemouth, and 2 upside down catfish in there. What else do u suggest for me to add in the tank I want like very nice color fish in it that is not a livebearer or tetras. thank u so much!!

Answer
Jane,s les

 First off, you tank is seriously over crowded and here is why:

The parrot fish needs 55 gallon all to himself, but you have 3. Now you need a 165 galloms.

The algae eater(placo) and the cat fish have the same job. They eat algae and nee a 55 gallom for the pleco, you have 2 so you need110 min. for them

The The BK 70 gallons each

german blue ram needs 10 gallon minimum.

fire mouth 30 gallon minimum for 1

catfish 20 gallon each

So as you can see, I would not add any more fish to that tank. Do not put the tetra they will eat them

just keep a close eye om m him and if gets worse Let me know.