Yes and other issues. Honey gourami, platies, and cories need bigger tank. Platies I believe are cold water and the others are tropical. Also you need to have the right amount per fish to reduce stress, aggresion, and for natural behavior. Cories need groups of 6. Not sure about platies.
You need to be thinking smaller on the fish side.
Other options.
Betta
There are several dwarf / micro rasbora
Dont forget shrimps depending on the fish you choose.
Also remember bioload. If you have plants and more than likely snails plus a few fish and maybe shrimp. Its alot. It sounds non active but you be surprised. I like my guppies but im all about the plants. Shrimp are cool. If I had no fish id be ok lol