fast

hello peep's okay i am trying to find a fast growing plant the fastest out there sort of thing my idea is i want this plant to soak up all the excess nutrients in my tank, i dose EI method, i also inject co2 and have high light, I'm trying to minimise algae by limited excess nutrients to plants ...

I just got 3 fish this week. They were all fine the first day, but one of them couldn't swim and has now died, of the two remaining one seems healthy and the other is laying at the top of the tank on its side and cant swim. Could you please tell me what is wrong and how could i help the tank? I...