WIO > River Kits

A River Kit is the whole hardscape in one box: substrate and matching stone from the same color family, in proportions that work together. It is the fastest route to a scape that looks like one decision rather than several, and it is the product we point first-time aquascapers at more than anything else in the range.

Why buy a kit rather than the parts

The most common reason a first scape looks wrong is not skill. It is that the stone and the substrate were chosen separately, from different suppliers, on different days — and they sit in the tank arguing with each other. A gray-blue stone over a warm tan bed reads as two landscapes stacked on top of one another.

A kit removes that decision. The stone, the gravel and the fines are drawn from one palette, and the quantities are matched so you are not left with a beautiful centerpiece stone and not enough substrate to bed it into.

What is in the box

Stone in a range of sizes, blended substrate, and the finer material that ties the two together at the base. The kits come in 6 kg and 19 kg sizes — the 6 kg suits a nano or a small display, and the 19 kg is enough to scape a standard three or four foot tank.

Weigh up the size honestly. Hardscape loses a surprising amount of visual mass once it is half-buried, and running short mid-build means waiting on another box in the same color family and hoping the batch matches.

The color families

Red Dusk is warm, rusty and dramatic — the most opinionated of the three, and it commits the tank to a palette. It suits plants with red and bronze in them and it makes a green-only scape look flat.

Silver Shine is the light, pale option. It opens a small tank up, throws light back into the plants, and is the easiest to photograph. It also shows detritus, so it rewards a tidy maintenance routine.

Pale Ethereal sits between the two — soft, neutral and quiet, which is what you want if the plants and fish are meant to be the subject rather than the rock.

Building with one

Lay the substrate first and slope it up toward the back; the slope is what creates the illusion of depth, and a flat bed will never look like a river regardless of what you put on it. Set the largest stone first, slightly off-center and tilted rather than level, and build the supporting pieces around it with the grain running the same direction. Then work the finer material into the joins so the stones look half-buried rather than placed on top.

Fill slowly, onto a plate or a bag, or you will undo the whole thing in ten seconds.

What a kit does not include

Plants, and any nutrient layer. WIO substrate is not an active soil — it holds no nutrients and does not buffer pH. For a planted tank, either put an aquasoil layer underneath and cap it, or plan on root tabs for heavy root feeders. For a biotope or fish-focused setup with few plants, the kit alone is complete.

Come and see one wet

These look entirely different dry in a box and wet in a tank, and the color families are the part people change their mind about once they see them under water. We keep WIO at the Convoy store and will wet a sample for you. If you want the technique rather than just the materials, our aquascaping workshops build a full nano scape in an hour, hardscape included.

See also WIO Riverbeds, WIO Stones and the wider aquascaping range.