Ordered some staurogyne sp from the green machine and i dont think i have planted it properly as most of the larger leaves are dieing and falling off, its been planted for about 3 days now it came potted but was quite large in height so i planted it by trimming the tops off the plants and planted them like a stem plant, is this correct and is it a case that the plant just needs time to adjust to the new tank or have i planted them wrong. Also got rotala sp and pogostemon helferi which both seem to be growing ok, tank is 49 liters with 3x8w t5 luminaire on for 8hrs dosing 3ml of tpn+ a day with co2 on for 8hrs with lime green drop checker. any idea's ?