I am new to plants , my experience in plants is turning my Marimo moss balls over ever week , about a month ago I buy some Amazon swords as I herd they are easy to grow and are very much for lazy plant keepers , but they seem to be dying , my tank is set at 26-27c is it too warm for them? They also get lots of natural light is that bad ? Like I said I’m a complete amateur with plants and it’s really putting me off