水草情迷

i have a 2.5g tank with glossos in there. i am using 13w pl and diy co2. but my glossos grows vertically. i don't know if it's the problem of my light cause my light is 2 inchs above water surface and i have a glass cover over my tank. please help me.

Glossostigma elatinoides demanding a lot of light. Grows upwards if light is poor. Make sure larger plants do not overshadow it. When planting in the aquarium small clumps (approx. 1/8 pot) should be placed at intervals of a few centimetres to help the plants grow together more quickly. CO2 addition and soft water promote growth significantly.