Here I'd like to talk about my adventure with a little low tech planted tank.
Soon I will buy a Wave Box 40 Cosmos (25 liters), in which I want to keep a Betta splendens.
I can't afford fertilizers and I don't want to use them, plus I'm going to grow plants like Microsorum, Bolbitis, Anubias and moss, so I think it won't be an issue.
The tank has a 20W Cosmos freshwater included, I think it will be enough.
The tank isn't big, so I don't want to put too many plants in it because I want to leave space for swim.
I'll use a very thin layer of yellow-ochre fine sand, maybe lighter if I don't find it at the store.
On the left side I want to plant, on little rocks, Microsorum (Needle Leaf or Narrow Leaf) and Bolbitis in the back.
In front of ferns I'll put Anubias to hide rocks on which ferns are.
That's the general idea: On the left a "bush" of plants that ends with sand only on the right.
From ferns clump maybe I'll add some little branches that come out going to the right side.
I'm not sure if I'll use Anubias 'Petit', it depends on what rocks I find, if they are nice to be seen or have to be hidden.
Same with moss.
I have to go for a forest walk searching for nice rocks and little woods! Ahah
I have a marimo ball (Aegagropila linnaei) in a glass jar, and some little pieces were not well attached, so I pull them away and put them on little dark lava rocks. I will use these little green pillows in the tank and see if it work.
With the Betta I'm going to put 2\3 Caridina japonica (Neocaridina are too small for the Betta) and Blue Planorbarius corneus.
Let me know what you think about this tank I'm planning.
I'm afraid if bolbitis will grow too big, but I read you can cut off big leaves and leave small ones only. Could I do the same with Microsorum 'Trident', if I don't find 'Needle Leaf'\'Narrow Leaf'?