Hi, I'm trying to seal up my new 300 gallon tank I received from a local fish store. I've stripped the inside clean of any silicone and the past owner of the tank, who owns a fish store, told me that I can just resilicone the inside and it will be good to go. I have done lots of research but have found nothing about people actually sealing a tank this large. Im trying to get some info from people who have resealed a tank this large or larger and the best way to seal it so it will last many years to come. Btw I have sealed tanks before and am quite good at working with silicon. Any information will help, thanks!