Welcome to the forum!
I unfortunately can't help you with that, not familiar with the tank. :-(
Isn't 30 litres only like 8 gallons or so? Thats not really a large enough tank to keep much other than some shrimp and maybe a clown goby.
180g- Mostly BIG fish and some coral. ~80g Nuvo- My coral tank with "happy fish"~ 90g- FOWLR Not the not happy type of fish~ 125g- Freshwater Malawi Cichlids ~10g- Nuvo- The refugees from the Ich of '18