So I acquired what I believe to be a 55gallon tall. Regardless I got it from a customer for free but it had a ton of algae on/in it which I scrubbed the majority of off, but there is still some stubborn stuff left behind on the topical silicone seals. Elbow grease isn't doing it and I now have it full of water and used some anti algae solutions. I would like to use the tank asap, is whatever is left on there harmful? Will an algae eater eat it clean? I believe its algae/mold from him draining and storing without drying. What's the best way to go about this?