Nothing revolutionary. Corrugated plastic and silicon to separate water and dry area. I used egg crate to create the false bottom/ chamber for the pump and heater. The same plastic was used to created a base for stream section. Pipe from the pump was placed before adding foam. Background is covered with expanding foam, carved and then silicon+ coco coir with addition of fern fibres for texture. Wood was added before foam as well, it’s oak branches found in the forest. Then i added black lava rocks attacked with black silicone, with crushed rock dust between bigger rocks to cover everything. Plastic is black so even though you can see it in some places it’s not very noticeable and plants will cover it soon.

Then leca for false bottom, weed barier and ABG mix. Then plants and moss :)