My dad has a 110 Litre Tank.
It has
3 Tiger Barbs
1 3 Inch Bala Shark
2 Small Bala Sharks
2 Golden Barbs
3 Dwani Catfish
2 Monos
1 Adinos Pleco
1 Dwarf Pleco
2 Red Platys
are you trying to say that because yours is less overstocked its ok? because its not. and if your tank would be overstocked when the fish are adults,consider it overstocked now. thats the easy way. and by the way,bala sharks need 120's,schools,and arent aggressive. and there isnt an 18 rule. making one would be pretty stupid,imo