Hi everyone this is first time I've used this site
Want some help with the best lightening for growing plants in tank it is 2ft x1ft x
16ins deep. I've had fish for over 40 yrs incl marine but new to growing plants .
All I've read up on is saying 2-4 watts per gallon I have put in extra tube but as they are only 18 ins each so how can I get enough watts. I'm looking forward to any help on best lightening . Thanks