EKA WIDHIASTUTI. Application of Probiotics with Different Dosages on Water Quality and Growth of Climbing Perch (Anabas testudineus) in Aquaponic System (Supervised by MIRNA FITRANI and FERDINAND HUKAMA TAQWA). Poor water quality can negatively impact fish growth. Introducing probiotics in the fish-rearing environment can improve water quality by converting harmful compounds into non-toxic ones…