Ironstone is a dense, heavy hardscape rock known for its deep charcoal-gray hues, rich copper-brown oxidation streaks, and flat, slate-like layered structure. Its naturally blocky forms and flat planes make it ideal for stacking stable terraces, elevated plateaus, dramatic cliffs, and secure cave structures.
Ironstone Rocks | 2.5KG
Ironstone Rocks | 2.5KG
Important note: This is a natural stone, being natural we won't be able to give you the exact pattern shown in the listing. We will pick random sizes and patterns equal to the weight you have purchased. For sizing, see details below.
sizing details
To request a specific rock size (Small, Medium, or Large), please leave a preference in your order notes at checkout or send us a follow-up email after placing your order. Size requests are fulfilled based on current stock availability. You are always welcome to contact us before ordering to confirm real-time stock levels for your preferred size.
LENGTH (AVERAGE)
Over 15cm
WEIGHT REQUIREMENT
Average stone in this size weighs upwards of 1kg. One qty is sufficient for multiple pieces.
NOTE
Actual stone will vary from the images shown. As a natural element, exact colors, shapes, weights, and dimensions may differ slightly from the specifications listed above.
medium
LENGTH (AVERAGE)
12-15cm
WEIGHT REQUIREMENT
Average stone in this size weighs roughly of 300-500g. One qty is sufficient for a multiple pieces.
NOTE
Actual stone will vary from the images shown. As a natural element, exact colors, shapes, weights, and dimensions may differ slightly from the specifications listed above.
small
LENGTH (AVERAGE)
Under 7cm
WEIGHT REQUIREMENT
Average stone in this size weighs under 300g. One qty is sufficient for a multiple pieces.
NOTE
Actual stone will vary from the images shown. As a natural element, exact colors, shapes, weights, and dimensions may differ slightly from the specifications listed above.
Transform your aquarium with authentic, wild hardscape materials from Aquatees. We supply thousands of kilograms of naturally sourced aquarium rocks, premium driftwoods, Tweety wood, and fine sands—bringing raw, untreated nature straight to your tank. Because our hardscape is harvested directly from the environment, simply give your pieces a brief rinse to remove natural dust before building your dream aquascape.
Because Ironstone is a dense, heavy material, use 0.25 to 0.35 kg per liter for standard layouts, or up to 0.45 kg per liter for high-stacked, heavy terraced cliff structures.
No. Ironstone is completely inert and will not alter your pH, KH, or water hardness.
Ironstone is dense and heavy. While harder to break than volcanic stone, it can be split along its natural grain and layer lines using a hammer and chisel to create custom flat slices or smaller stacking pieces.
Rinse the stone thoroughly with fresh water before placement to wash off surface dust or dirt from harvesting and transport.
Yes. When submerged, the stone darkens significantly, intensifying the contrast between its dark gray slate tones and rich copper-brown rust veining.
