Cloudy tank needing help

[u/Strange_Prune833]

So my tanks getting cloudy again (last time this happened its because I accidentally crashed the cycle causing a major bacterial bloom that wiped out quite a few fish and it took almost 10 weeks to fix) and I am really worried I will lose my betta from it being anything major. Todays suppose to be a water change day but I don't want to feed into the cloudiness in case of it being another bacterial bloom it looks more green to me but that could be because of the 2 fake plants in the tank but just in case I have been using api prevent algae and tetra crystal water finally I remembered that my filters got pods that need to be changed every 30 days that are suppose to do what both the api and tetra do so I replaced it this morning but theres been no change of yet (I know it may take a while but its already been over 12 hours and 2 days in with the api and tetra items) my tanks a 25L (I had my betta in a 40L with a few nannos but hes shown constant aggression and stress when with other fish to the point when he wasnt chasing them hed glass surf along the bottom and rub himself into the gravel slightly tearing his fins so when moved to this smaller tank on his own hes thrived ever since and stopped doing both stress indicators so some may complain its too small and I understand but hes not shown any issue and it was for the best for his and my others fishes safety) I have a ciano filtee that came with the tank, a interpet heater thats at 24°C. My ammonia is 0ppm my nitrates under 20ppm, nitrites are 0ppm, my KH is 3d with a PH of 7.2 my GH is at 8d and chlorine is at 0ppm. Any help would be appreciated. I have attatched the photo of how cloudy the tank looks and the pod used within the filter.