I'm guessing that what you don't like is the algae. (Or is the the death of your inverts?) Is it a slimy and thick algae or how does it look exactly?
What are your water parameters? (Especially ammonia, nitrite, nitrate and phosphate, but all parameters are helpful.) How do you test (strips or liquid, brand)? Specific gravity? How do you test that? (Hydrometer or refractometer)
What is the source for your water when you do water changes? (Tap, LFS
, grocery store) Have you tested your source water for ammonia, nitrites, and nitrates?
What kind of lighting do you have and how long is it on?
Have you ever used any copper-based medications in the tank?