ok my star fish is falling apart ive had it for about 3 month and it was very active until about 4 days ago when i did a water change and lowered my salinity from 1.026 to 1.021 and i added some phosphate remover when i did the water change the reason i i went down on the salinity is cuz i was told that it might help with algae i had in my tank and that it would be safe but i guess not so is there anything i could do to save my star its a red spike ive been testing the water and every thing is normal except for the salinity that i dropped it should i raise it