10-25-2012, 08:40 AM
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Originally Posted by pop
In previous post implies snails will colonize the filter and assist good bacteria in the nitrogen cycle. Would this affect the bio-load and aquarium in a negative manner by increasing nitrate production and destabilizing bacteria colonies which might threaten the health of fish and plants.
No the reverse is true, snails actually help. They break down left over food/waste in the tank quicker into a less complex form the bacteria can more easily use.
'Pest' snails which people generally have problems with will only overrun a tank if there is sufficient food for them. As with most creatures in nature, they self regulate their numbers to the amount of food. So if you have thousands of them everywhere, it's a clear sign you are feeding too much and not removing enough waste in water changes.
I have Malaysian Trumpet Snails (people call MTS for short) in all three of my tanks. They likely number in the hundreds, but I honstly don't see very many of them as they live under the substrate and for the most part only come out during the night. They keep the sand nicely stired up to prevent dead pockets from forming.
Pond and Ramshorn snails are more visible and usually the ones people have 'problems' with. I have pond in one of my tanks, but not that many (that I notice at least).