Alight, so my 55gallon tanks back up and running YAY! 
My current stock is
2 Angelfish
16 Tiger barbs
8 Red minor Tetras
1 BN pleco
1 Clown Pleco
6 Albino cory catfish
and 1 whiptailed catfish
I know the tank seems a bit crowded, but I am very diligent with my water changes (twice a week 30%), aswell in regards to the Tiger barbs with angelfish, I've been told that if in a big enough school (12 or more) the agression should be limited to themselves, aswell the Red minors are shoaling with the tigers, so it's a group of 24.
I was wanting to originally have a total of 18 corys, 6 albinos, 6 peppered and 6 green/bronze/another type. I'm not sure that I could get away with that overstock. But I'm wanting to either try 1 of 2 things, get another 4 albinos, or get 6 more of another species (hoping peppered).
Would this be alright?

My current stock is
2 Angelfish
16 Tiger barbs
8 Red minor Tetras
1 BN pleco
1 Clown Pleco
6 Albino cory catfish
and 1 whiptailed catfish
I know the tank seems a bit crowded, but I am very diligent with my water changes (twice a week 30%), aswell in regards to the Tiger barbs with angelfish, I've been told that if in a big enough school (12 or more) the agression should be limited to themselves, aswell the Red minors are shoaling with the tigers, so it's a group of 24.
I was wanting to originally have a total of 18 corys, 6 albinos, 6 peppered and 6 green/bronze/another type. I'm not sure that I could get away with that overstock. But I'm wanting to either try 1 of 2 things, get another 4 albinos, or get 6 more of another species (hoping peppered).
Would this be alright?
.