Hi, I'm currently only a couple of weeks into my first tank, so please be gentle. Firstly I have a Juwel Rio 400 tank (125g) with internal filter system. Due to this I decided to go with pressurised CO2 with a large ceramic diffuser (50mm). In a future tank when I have an external filter...

I have been a long-time lurker around these forums, and have recently decided to switch from an oscar tank to a planted tank. Currently I have a 15 Tetras and 5 plants in my tank as a test to make sure everything can survive under my control. I dose the tank with my own dry fertz, I used an...