06-17-2009, 09:21 AM
The Plant Whisperer
Join Date: Jul 2004
Location: South VA
iTrader Positive Rating: 100%
| | Re: Beginner's Guide to starting your first Emersed setup!!
It depends when I check on them. Sometimes I check them every day, because I'm checking for flowers, other times I don't check them for months at a time. They don't really need much care after they are set up.
The container isn't sealed super tightly, I just put the plastic lid back on, I didn't do any extra sealing on top of that. Plants need to exchange gases with the atmosphere or they will run out of O2 or CO2.
About fertilizing: the plants won't grow faster with more ferts added to the water. The black top soil contains more ferts than the plants could ever use. It will last for several years without running out of fertilizers. The only way to make the plants grow faster would be to increase the CO2 levels inside the container to roughly 2.5x the normal atmospheric concentrations but not higher, this might be a bit tricky though to control. Even doing this isn't necessary since natural concentrations in water of CO2 are roughly 3 ppm and in the air it is +350 ppm so the plants are definitely getting plenty of CO2.
You can leave the container outside, but you must be very careful that it doesn't overheat. Most aquatic plants can't handle more than 85 F without dying so direct sunlight all day + black topsoil absorbing all that heat and a container that acts as a greenhouse = hard to control temperatures. You might need to put the tub in a place where it gets indirect light for 95% of the day and maybe an hour of direct light in the morning or night. My friend grew HC in this way, so they get plenty of light.