Hello from Georgia!
I'm new to this site, and fairly new to aquariums. I have two 10 gallon aquariums (started off as only one for my daughter, then had to have my own). I'm afraid I'm now hooked, but will have to start out slow. I eventually want to have at least a 55 gallon aquarium, but for now, a 10 gallon is my max. I look forward to learning from those more experienced than myself.
In my 10 gallon tank, I have 1 betta (male), 6 neon tetras, and 1 nerite snail. I want to add 2 or 3 small corydoras. According to aqadvisor, adding 2 would bring me to 90% capacity, and 3 wound bring my aquarium capacity to 98%. I read that cories like to be in groups of 6. Is it okay to just have 2 or 3? Right now, I have small gravel, but plan to change to sand in a couple of months and add live plants. Any advice is appreciated! BTW - my betta is getting along fine with the neon tetras. I've researched and watched videos of male betta in community tank with tetras and cories with no problems. I will keep a close eye when/if cories are introduced to tank.