Hi all. I've got a tank which is 20 inch deep 18 wide and 48 long. Looking at the fluval 59w plant 3.0. Got medium and easy plants and my current light is dying. Not running co2 at the moment. Just wondered if the fluval will penetrate deep enough and wide enough? I can't afford two of these but I could afford two of the nicrew plant ones. I asked the same question elsewhere but not really had much of a response. Anyone got experience of the 3.0? Thanks!