4LBS of Aquascaping Seiryu Stone Rock Aquarium Tropical Fish Plant Shrimp Driftwood by Seiryu Stone Seiryu Stones are one of the most popular hardscape stones used in aquascaping an order of 4 lbs. in weight may get 1 or 2 stone on the order due to Seiryu are heavy in weight on each stone. Stone size, Stone shape, weight and look will be chosen by us. We will do the best to pick a mixture of sizes in each order Please consider this order carefully due to the heavy weight of each stone may not be enough for your aquascaping project. 4 pounds doesn't go very far so if you're working in a big tank, consider 10 lbs or more see next listing. There is no large stone in this 4 lbs. order. Pictures are for references only. Stone needs a good wash before used