My first fishtank ever
Hi people how's it going? I'm new to fish keeping. I have a ten gallon rectangle. It has a 20 gallon marineland bio wheel filter and a 40 gallon capacity air pump with 4 inch flat airstone. It's gravel bottom. It started off as a single goldfish tank. My gf bought 7 neon tetras and 4 guppy and 2 panda corydoras. The fish have all lived together about 2 weeks now. I change out a half gallon or just under every day to help keep the water clear. Today I decided to go to the pet store and found marimo moss balls and added 2 2 and 2 1 inch balls to my tank and 5 ghost shrimp. I plan to add 3-4 more moss balls and a new leafy plant or 2 for the tetras and guppies to hide around. I have one cave but I'm adding another in a week or 2.
So my questions are 1) can I afford to have 1-2 more panda corydoras and another 5 ghost shrimp or will it be overcrowded and uncomfortable for all of the life in there now?
2) what leafy plants can I add to help contribute to water cleanliness?
The goldfish is not aggressive. It acts like it's smaller than the smallest tetra but it's 3 inches.
I also have 5-1 test strips. Just bought them never used them. So any help there would be good. I can read and understand the results I don't know how to correct them if need.