
2ft using 55w is low light???
Then my one, 2ft with 36w is super low light lo...
I'm planting Asian Ambulia (Limnophila sessiliflora), Water Sprite (Ceratopteris thalictroides) and Rotala wallichii (Rotala sp. 'wallichii')
I can grow them quite satisfactory even with 36w for 2ft, but they grow even better when I added DIY co2. The only difference I observed is that they don't grow new stems side ways. When I trim them, only one new stem will grow out, not like everyone else which has 2-3 new stems growing out everytime you trim.

So cannot get the bushy effect
But now I'm considering adding the lighting to 55w la, cause I really want to make the stem plants bushy...
BTW, how much you bought your 55w PL lighting???

I'm thinking of replacing my DIY T8 lighting with a new set instead of adding another T8 lighting...
Cause new set got proper casing and reflector

, and won't take as much space as 3 set of T8 fluorescent tubes...
hmm.. i bought it for around rm100... cannot remember the exact amount...
the problem is i do not have co2... i thought strong light and CO2 must come together in order for them to grow nicely..
thats y i opt for low requirement stem plant...