This is my first time to post. I have a 100 gallon tank with approx 70 pounds LR. I had a baby and unfortunately the tank was neglected. For whatever reason, we kept the tank running for a year now without fish, just adding saltwater when needed. I want to get this tank back into condition to add fish again. The tank has a filter sytem under the stand and is filled with blue bioballs. The tank previoulsy was very successful for 4 years. I now have red, green slimely, and black algae everywhere. I have tried my best to clean with a magnet and brushes. Does anyone have any suggestions for me? Should I get an algae cleaning crew or should I empty the tank and start from scratch? Should I throw the rock away? I really appreciate your thoughts on this.