i have a 14-48 ultra frame intex i been trying to clean up for a few weeks now and i am having trouble clearing it up still .....my cya was 50 and i have had it at shock level for 3 days now and it is still cloudy with a light greenish color to it ph is 7.4 and ta was 70 any suggestions on what else i need to do ordo i just need to keep it at shock level longer