Fish Fan 寫:
I think it depends on what plants you have. I changed to UP T8 20Wx3 more than a month ago. My experience is: the plants, particularly the red plants, are not growing as well as T5HO tubes. Probably T8 20Wx4 would be much better but you can't find such lighting case in FS (except 水x店, but the width of the case is too wide that it makes the daily maintenance difficult). I have changed back to T5HO 24Wx3 and all the plants in my tank restore to their perfect conditions in two weeks. In terms of wattage, PL 36Wx2 should be fine. My only concern is - the light may not be able to reach the whole tank and some areas would have blind spots.
See whether other c hings can share their experience.
thank you for your kindly and detail explaination.
Would u also recommend any 24" T5HO Light case for me.
It seems Dazs is cheap, but not very safe and reliable!