HI all, I'm new here and having an issue with my 37g aquarium. About 2 weeks ago, I did a 25% water change and vacuumed my gravel. I had a massive algae bloom 2 days later. I asked my local fish store and they said I needed to do another 75% change immediatly, so I did. No change. What should I do? The water is really cloudy with a dark green tint to it. Do I need to do a regular 10% change, leave it alone? Add algae control?