Star Grass - Help !!!

[ezbandrea]

Hi all,
I have a 57g freshwater which has been running for 6 weeks now. Water parameters are perfect - 0, 0, 10ppm. fish are in and no problems so far. it was an upgrade tank so was fully seeded with media and ornamants.

The problem i have is my plants, particularly my stargrass, have been getting brown/black tips and edges to the leaves.
They are growing but just do not look healthy.
They are planted in medium grade white aqua sand to a depth of 3 to 4cm. The lights on the tank, a Aqua one 980, are on 8 to 10 hours a day.

any help would be much apprieciated.

 

[aqua_chem]

Ferts, light type, carbon supplementation?

 

[ezbandrea]

No added ferts or CO2. lights - 2 x 8000k/30w super light and 1 x 15000k/25w Tri power light.

will plant tabs sort my problem?

 

[Ilikefishes]

Co2 and ferts will solve your problem, since they get most of their nutrients through the water column, and aren't big root feeders. SeaChem Plant tabs will help a little bit though, I personally like to use them under every plant in my tank.