Ok, for starter, stop dumping stuff in the tank. There are no quick fixes in this hobby.
Now, if your fish have ich, you will need to remove them to a qt
tank for proper treatment, while leaving the main void of fish for 6 weeks to allow the parasites to go through their life cycle and die off. You can treat the fish easily in the qt
tank with hypo or a good copper agent like cupramine.
You then need to get the nitrates and po4
down. like Billy stated, loose the bio balls. You can also up the water changes to like twice a week, siphoning out the algea. At the same time consider getting a R/O unit to improve the water quality Don't trust someone elses water. If you can get the nitrates and po4
down, it shoud help with the algea problem.
We will be happy to help you with specifics.