2ft ht should be still ok for PL to reach to the base. However it also depends on the height of the substrate, prob make it around 2 inches? or 3 if you can also. However there has been a recent discussion where they said that T5 lights appear to be better for a taller tank. Chk it out in this forum i believe its somewhere here. Or why not custom make a tank, thats what i ll do too when i m gettingmine, prob 4 x 1.5 x 20 inches. That way i think after taking into account the gravel i should have 1.5 feet for the plants to grow, rather sufficient.
Holy is the Lord, God Almighty ! The Earth is filled with His Glory !
90 x 50 x 50 cm tank: Eheim 2217; ANS CO2 Solenoid with 60mm intense bazooka; Zetlight 6400; Teco 500 Chiller; Borneo Wild Steel inlet/outlet
Ferts: Dry Mixture/Dr Mallicks. Temp: 26 degrees Substrate: ADA Amazonia
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