Over-Stocking?????
 

I have:
1 Sebae Clown,2 Common Clowns,1 Blue Cleaner Wrasse,2 Blue-Headed Damsel(Rolland's Demoiselle).
If I bring in more fish in my 100l Fish only setup,wil it be over-stocking????????

I think that you are close, if not already overstocking.

What equipment do you have. Like a skimmer,sump, etc.

I do 15% water change monthly..

you should be doing 15% water changes weekly

just to be sure, is 100 litres is about 26 gallons? if so you shouldnt put anymore fish in there. you already have to many.

In a 22 gallon tank that's way too many fish. Some of the species you own shouldn't even be in a tank that small.

Sorry, but I agree, you have way too many fish for that size tank :(

And we keep telling him over and over and over........ 2 clowns in a 5g if I remember.

ugh...i have such a hard time remembering who has what. i forget alot, there are just so many tanks.