I have a 20 gallon freshwater tank with: 1 Angelfish, 1 Hatchetfish, 4 Neon Tetras and 4 Cory Catfish. After having the tank for about a month I decided to start with live plants. I just added an Amazon Swords plant with a root tab underneath it. The water is 7.6PH, Nearly no Ammonia, 0 NO2 and NO3, 78-80F with lights on 10-12h daily. I am thinking of adding hornwort as a surface plant and dwarf water lillies and some more. In August, when I come back from vacation, I am going to change the fish completely to: 4-6 Cory Catfish, 1 Paradise Fish, and maybe a Pearl Gourami or school of Tetras. Any ideas for the plants and tank mates with Paradise Fish? I'm not sure what light I have right now as it came with the tank, but I am buying a new light as shown in the picture. Do Paradise Fish jump? If so how can I find a mesh covering? I also have a small airstone behind the Amazon Swords plant as I am trying to cool the temp down a little bit. Also I am not sure if I am over oxidizing the tank as I know it can be lethal. How would I be able to check?