Changed pump from an inside one to an hang on-Dennerle scapers flow. I simply can not capture the crispyness of the clear whater with the phones camera. Also anubis was trimmed and
Scapers Flow – Hangon-Filter - Dennerle (EN)
Dennerle Scaper's Flow, Hang-On buitenfilter
Dennerle Scaper's Flow White - Backpack External Filter for Aquascaping Aquariums (Hang-On) : Amazon.de: Pet Supplies
Dennerle Scapers Flow - HangOn-Filter, black | GARNELENHAUS