You can wait for the root tab and add them any time you can, but asap, as there really isn't anything in there for it, no fish poop no ingredients for growing.
The root tabs are placed about 3" deep and I for get what the average is but 4-5 inches, it says on the package. I use a different kind, mine is every 4 square inches. so you might want to do 3 tabs if it is a decent size.
Think about the space around the plant where the roots will actually grow out 6 inches diameter easily. Then come in about 1.5 inches like if there was a triangle in the root circle.
Other plants which you might place near the Sword would also benefit from the same root tab if its root zone was nearby.
Yay for people getting live plants.
Low light can still have a great looking tank. Here is a pic of one (water was low for some Mystery snail eggs) This is a 72G tank with one 32W bulb for plants
Thank you. The sand that it's planted in was moved from a previous set up ( my 125 that let loose) so there is a little fish poop in it. I'm planning on moving all my fish over today too.
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I don't really follow any code with my scapes either. As for the plants, check the classifieds here and other forums, some great deals out there! Peabodys paradise is a good online plant supply.
