Hey y'all, I am needing some help. I have a 150g that has been up and running for about a year. I have tried the hanging method, the hosptial tank first, and just putting the fish straight in. But nothing seems to work. Every time I get a new fish it will last me about 2 weeks and die. I know this is vague but my chemicals are correct. The tempature is right. i just can;t figure it out.....