need more help on fish pls help

[STEVIE00]

hello
in my 30g tank at the minute ive got


1red parrot
1 king tiger plec
2 corridoras
8 platies
2 otocinclis

and would lke to had some other fish
anybody got any ideas
pls help many thanks

 

[Fishy411]

i would move all but the Pleco and Parrot or else the Parrot may become too aggressive