siphon pump, fish tank cleaning tool, water exchanger, pipette, 28cm, 30ml

28cm 30ml fish tank supply pipe cleaning tool suction pipe fish tank siphon pump replace the fish tank suction pipe features: remove the dirt and residual feed from the bottom of the small fish tank. the utility model is suitable for the small water changing tank of brine shrimp, red insect and water flea. it can be fed after the food has thawed. the amount of water absorbed by the dropper can be adjusted by controlling the holding force at the end of the dropper. the liquid additive is add