[Tips for breeding RCS and Pygmy Cories]

Hello I recently got back into the hobby. I have a 10 gallon with 7 pygmy corydoras and 10+ red cherry shrimp. I have java moss and amazon swords. I am thinking of adding 5 more pygmy corydoras since hastatus is so hard to come across as well as dwarf ambulia but I cant seem to locate any. I would like to turn this into a breeding project with only these two species. Will they be compatable ? I havent noticed any predation of the smaller RCS. 

[Java Moss Math]

anytips for it to grow I bought some and it seems to not be as green 

 

[Stocking List]

Does anyone have suggestions on where I can buy emerald eye rasboras, celestial pearl danio and hastatus corys. For CPDS I am trying to breed them so I want spefic male to female ratio. I plan on also adding some cherry shrimp and any tips with these.

[cycle crash]

However, the bacteria thrives on the highly oxygenated, high flow areas of the filter too. thank for this suggestion I will do this

[cycle crash]

My tank recently had a bacteria bloom for 3 days and 18/24 of my fish died.... The tank had substrate that was in an established tank and a plants. I did however change the HOB filter to a sponge which is my guess on why the bacteria bloom happened. The left over food causes ammonia to spike and since there was a new filter there wasnt benefical bacteria? I have 6 pygmy corys left and plan to let the tank do its thing for a month or so and then start adding in cherry shrimp and snails first. Then later on some emearld eye rasboras and cpds again.