Need help with my Amazon Sword plants
I planted 6 20" tall amazon sword plants in my 180g. After six months, Problems:
1. they are getting pale green,
2. the tip of the leaves are turning brown,
3. there are holes on some of the leaves.
4. the new leaves are shorter than the old leaves.
2 x metal halide (175w x 2 ) 6500k on for 4 hours/day
2 x VHO (140w x 2) 50/50 on for 10 hours/day
jebb tablets in the substrate and liquid fertilizer monthly.
11 cichlids (ave 5")
20 other dither fishes (mainly mollies and swordtails)
pH - 7.6~7.8
gH - 280 ppm
kH - 300 ppm
Nitrite - 0
Nitrate - 40~60