The sales price of the product you have examined is determined by the seller. aquarium pump bottom siphon bottom draw siphon is the most used bottom siphon in the market. the plastic long pipe at the place where the water is drawn when it is buried in the aquarium sand it attracts the fish dirt but it does not pull the sand because the density of the sand or stone is too big compared to the fish dirt. fish droppings are removed and the sand remains. bottom shooting is very important in your aquariums. the highest rate of losses is nitrate and dirt accumulated at the bottom. maximum 10 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 10 units. more than 50 stocks are available to be sold at the campaign price. a product can be sold by more than one seller. sellers of products offered for sale by more than one seller are listed according to the price they set for the product, seller ratings, delivery status, promotions on the products, whether the cargo is free or not, whether the products can be delivered with fast delivery, and the stock and categories of the products. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.