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Keeping the snail population in check can be accomplished a few different ways:
Snail Eating Fish - In most cases, this solution requires the least amount of work on your part. Results will vary with the type of fish, your feeding patterns, and the type of snail in the aquarium. Common snail eating fish include; Malawi Cichlids, varieties of Gourami, varieties of Bettas, and most Botia species.
Manual Removal - This is simply just picking the snails out as you spot them. This is probably the most common method used by hobbyists, and the most immediately effective. Depending on what is in your tank, leaving a tray of food overnight will attract the snails, which can then be easilly removed by removing the container in the morning.
Reduced Feeding - Snails can only populate a tank to a level that the tank will sustain them. This means that by cuttting down on feedings to your fish, you can effectively reduce the overall snail population.
Snail Killing Chemicals - You'll see snail remover chemicals sold in most pet stores. While they are usually effective, anything designed to kill snails is probably not healthy for other plants or fish. Even if the chemicals are harmless to the fish, the massive die off of snails will leave decaying snail bodies in your aquarium, which can affect the water quality.
Complete Cleaning - As a last resort, and the only 100% effective method to remove snails, you can completely tear down your tank setup and clean everything. This includes gravel, the hood, plants, the filter... anyplace a snail may have been able to lay eggs. This extreme is probably not practicle for most hobbyists.
(Snails in your Fishtank
Phi Anderson from
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/www.geocities.com/abear27)
