great pond snails ( lymnaea stagnalis )
great ramshorn snails ( planorbarius corneus ) trapdoor snails ( viviparus viviparus )
Mixed sizes
This mix of large snail species are all excellent scavengers and will eat detritus, fish waste, dead plants, leftover fish food, dead fish, algae and blankett weed, trapdoor snails also filter algae from the water column. Being  native species they can all  survive the harshest UK winters but can also be kept in coldwater and tropical aquariums. 
Each snail has its own benefits in adding them to your pond or aquarium. As cleaners, all eat algae detritus, fish waste, dead plants and fish (they won't eat live plants). Some like the faucet snail also filter organic particles from the water including algae and bacteria and can help control green or murky water. For more info on each species see they're individual listings.
Each snail has its own benefits in adding them to your pond or aquarium. As cleaners, all eat algae detritus, fish waste, dead plants and fish (they won't eat live plants). Some like the faucet snail also filter organic particles from the water including algae and bacteria and can help control green or murky water. For more info on each species see my individual listings for each species.