So first off, I am new to the site and would like to introduce myself. I'm only 13 years old. I have a ten gallon tank with 2 platies, 2 cories, 6 red cherry shrimp (3 of which are the wild coloration), and a bunch of live plants. Now I know that I shouldn't only have 2 cories and 2 platies. The 2 cories were "rescued". My LFS had to give them away because some kid dumped salt (I have no clue where he got it) into thier aquarium. They gave me $10 with the cories and I figured that it was the right thing to do. They will probably find a new home soon. As for the platies, I have one male red wag and one female sunburst wag. I used to have another female, but the male just didn't pick on her at all and the other was getting a lot of pressure from him. So I sold her (a little disappointing, but I thought it was the right thing to do). She will be getting another buddy soon.I have a ph of about 7.8 (yet another reason why I need to rehome the cories) and both my gh and kh are high. My amonia, nitrites, and nitrates are all perfect. Oh! I forgot toadd that I have 25-30 platy fry in an external refugium. I have to sell them at around 5 weeks so that they don't reek havoc biologically. So my question is, what do you guys think that I could do better. Anything from stocking to fish choice to...etc. Thanks for any help andd I will specify anything that is in need of more detail.