Hello Jose, thanks for your advices. I'm using to grid to form a carpet effect with christmass moss. It's low-tech tank. So i do not want to use carpeting plants like parvula, cuba etc. I hope the tree and the carpet will blend to each other when the chritsmass mosses grow. And also I'm thinking about using 2-3 small trees to blend to tree into the scape. What do you think about this idea Jose? I'm not planning to include stem plants. I think this will corrupt the landscape view. I want to form a tree in a park together with a passage. The flame moss on the right back corner is not doing well without CO2. Maybe i can replace it with mini bolbitis.
Ourmanflint, undergravel works very well with the water parameters and water is always crystal clear. Maybe t can be bas for plants with roots. But i just have straugene repens. Also i've also heard that it's good for shrimps which i have about 10. I'm happy with it right now. Also i have a hang-on filter running too. If i decide not to use it, it will be no problem. I'm just trying the undergravel filter. Do you have any ideas about the design? Which plants can be added to make it look more sophisticated?