merged

Efficiency of Chlorella Vulgaris Beads in Improving Water Quality and
Growth of Juvenile Siamese fighting fish (Betta Splendens) Fry
Mok Yoke Leng
Supervisor: Dr. Helena Khatoon
Bachelor of Applied Science (Fisheries)
School of Fisheries and Aquaculture Sciences
Microalgae Chlorella vulgaris is utilized to filter chemical substances such as ammonia,
nitrite and orthophosphate to maintain optimum water quality and growth of juvenile
Siamese fighting fish (Betta splendens). By immobilizing the microalgae, the efficiency
in maintaining water quality to remove the chemical substances mentioned were
better compare to free floating microalgae. The cell concentration of microalgae was
1x10 6 cells/ml where a total of 4 treatments which are control (blank beads), low (4-
5 beads/mL), medium (10-12 beads/mL) and high (15-16 beads/mL) concentration of
microalgae beads and were tested with 2 fishes/tank/500mL of water with duplicates.
Results showed that there is a significant difference among treatments which were
control with medium concentration of microalgae beads in maintaining
orthophosphate and specific growth rate (SGR). This shows that the medium
concentration of microalgae beads produces a significant result in maintaining water
quality and growth.
594 | UMT UNDERGRADUATE RESEARCH DAY 2018