These are the dimensions in CM and it has 60 cm of water in it.

I currently have 6 x 1" clown loaches and 1 x 2" Synd Angelicus.
There are 3 large bits of bogwood and giant valis.
How many pleco's could i have in the tank.
Would like to add at least a golden nugget and a tiger or royal.
Will this be ok?
Regards
Trevor