Natural Aquarium Rocks, 20 lb, Seiryu Rock Stone, Dragon Stone

This 20 lb mix of aquarium rocks holds Seiryu rock stone and Dragon stone in pieces measuring 3 to 7 inches. Each piece is 100% natural stone, so texture and shape differ from one rock to the next. The grey-black-white hues and stripe patterns darken when wet, which suits freshwater and saltwater aquascaping, terrariums and outdoor landscaping.

Sizes and limits to check against your tank

Pieces fall in a 3 to 7 inch range, so a single rock can take up a fair part of a small tank and the pack suits a larger footprint. Each stone has its own texture and shape, and the stones are described as crack-resistant. The vendor states that the stones have a low impact on water pH; this is a stated property, not a guarantee for every aquarium.

Before buying, decide where the rocks will go. They are intended for aquariums, terrariums and outdoor landscaping, and the pack fits freshwater and saltwater aquascaping. The stones can be stacked, glued or broken into arches, walls or mountains, so an arch or wall build is possible if you plan the pieces first.

Natural stone, colour and pairing options

The rocks are made from 100% natural stone, which is why every piece looks different. Grey-black-white hues and stripe patterns run through the stone, and these darken when wet. The stones can be paired with moss, small trees and aquarium driftwood, and the vendor lists pairing options within its own range: Natural Slate Rocks, Seiryu Stones, Dragon Stones, River Rock, Pagoda Rocks and Turtle Platforms.

Each stone is crack-resistant, so stacking and gluing pieces into arches, walls or mountains is part of the intended use. Fish are named as the intended users, and these stones also appear in terrariums for reptiles, bonsai arrangements, fairy gardens and do-it-yourself tank, pond and indoor-garden landscaping.

What should I check before buying these rocks?

How big are the pieces in the 20 lb pack?

Pieces measure 3 to 7 inches. The pack weighs 20 lb, and the item weight is listed as 4.99 kg (11 lb) with a unit count of 352 ounce.

Can these rocks go in a saltwater tank?

Yes. The vendor lists them as suitable for freshwater and saltwater aquascaping.

Can I break or stack the stones?

Yes. The stones can be stacked, glued or broken into arches, walls or mountains.

What colours are the stones?

Grey-black-white hues and stripe patterns are listed, and the colour is given as grey. The patterns darken when wet.

What are the package dimensions?

The item measures 30 x 25 x 20 cm, or 11.8 x 9.8 x 7.9 in.

How do I use and clean the rocks?

Clean the rocks before placing them in the tank. Once clean, they can be stacked, glued or broken into arches, walls or mountains. The stones can be paired with moss, small trees and aquarium driftwood, and are intended for aquariums, terrariums, reptile habitats, bonsai displays, fairy gardens and outdoor landscaping.