Which materials for this aquascape?
Can anyone tell me what plants, rocks, etc. were used for this aquascape, and what kind of sand it is? So, how large is the aquarium in the picture, approximately in liters? (The more information, the better)
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Well, there's some fine sand separated with stones from soil.
I can still see a moss on the roots and possibly also Anubias (?).
A grass-like floor decker (HCC, needle size,…?)
And other plants…
Sand, soil, some volcanic rock, Morkie wood, plants.
I guess the pool is 120x50x50 or something bigger.
And I think it is an example of not only meaningless, but harmful use of soil. As it is set up, it offers good conditions to run stable in the long term. If the short-lived soil wasn't.
What short-lived soil?
Soil is a so-called "active soil floor". It is also a breeding ground and water hardness counter.
This makes the water values roller coaster. It is an open nutrient medium, not covered with a gravel layer, which in the first days and weeks yields too many nutrients and thus causes over-fertilization. After an unpredictable period, depending on the framework conditions, about half to a maximum of one and a half years, the nutrients are consumed. Then one is faced with the problem that the plants do not want any more and instead algae come and the nutrient supply with liquid fertilizer needs to be re-adjusted until everything looks good again. Water softening is not eternal. The harder the water is, the faster this ability is exhausted. This can range from a few weeks to a year. Then it was with soft water in the aquarium. Previously, the soil causes a strongly fluctuating water hardness during each change of water, because the water is filled hard and then cured. The PH value fluctuates. If you have soil and CO2 fertilize and change water with normal tap water, the PH value even fluctuates even more strongly.
Soil consists essentially of clay or clay, but is not properly burned. In the water it becomes soft, the balls gradually disintegrate. In the creation of Wabi-Kusas, the soil is deliberately merged into a ball, which is sensitive, but in the aquarium this is harmful.
Soil was especially invented for aquascaping. Together with extreme high light, extreme CO2 concentrations and special fertilizers, it is one of the prerequisites for keeping some non-virtual plant species alive almost violently. From the outset, a limited service life is calculated because many aquascapes can never run stable in the long term due to the selection of plants. Partly, a single perfect day and a perfect photo will be taken. Until the plants have the desired shape and size, the pelvis must run, no more.
If you understand an aquarium as a small biotope and want an unlimited runtime, "passive" soils like natural sands and pebbles do not pass.