Snails for pond?


Joined
Jun 19, 2011
Messages
2
Reaction score
0
Location
Shelton, CT
I 'm thinking of getting a few trapdoor snails for the pond. Is it a good idea or not? My wife is afraid the pond will be overrun with them in no time.

Thanks
 
Ad

Advertisements

taherrmann4

Tmann
Joined
Mar 3, 2011
Messages
3,142
Reaction score
699
Location
Louisville KY
Hardiness Zone
6
Country
United States
I put in 5 this spring lost one and have not seen the others since putting them in there. It is my understanding that the trapdoors do not spread as fast like the other type of snails. I will tell you that the one that died smelled really really bad...
 
Joined
Aug 19, 2009
Messages
75
Reaction score
1
Location
Upstate New York - Near Canadian Border
I asked that question with the Tech person at Aquadyne Bead Filters and he said not to have any snails in pond as they will eat the good bacterior.. I always thought the opposite, so you might get a better opinion from one of the resident experts on the forum. I have since dredged up a couple larger back door snails and threw then out inbstead of back in the pond. I think I have about four or five of them along with a lot of smaller snails in the pond right now. I should have searched further on the subject before as well..
 
Joined
Apr 3, 2011
Messages
190
Reaction score
2
Location
Eagle Mi
bobsox said:
I asked that question with the Tech person at Aquadyne Bead Filters and he said not to have any snails in pond as they will eat the good bacterior.. I always thought the opposite, so you might get a better opinion from one of the resident experts on the forum. I have since dredged up a couple larger back door snails and threw then out inbstead of back in the pond. I think I have about four or five of them along with a lot of smaller snails in the pond right now. I should have searched further on the subject before as well..


I don't think snails could possibly eat enough good bacteria to harm a pond. If that where the cast mother nature would been rid of them long ago. I would rethink any advice this person gives you.
 
Joined
Feb 2, 2011
Messages
768
Reaction score
354
Location
cumbria, united kingdom
Pond Boy said:
I don't think snails could possibly eat enough good bacteria to harm a pond. If that where the cast mother nature would been rid of them long ago. I would rethink any advice this person gives you.
humans and earth spring to mind with that quote pondboy !!
 
Ad

Advertisements

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,069
Reaction score
27,544
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
I put a whole bunch in my big pond, some in my little ponds, they crawl around eating algae. Even seen two breeding.

They only have live births and just a few babies at a time, so it would take a long time to overrun your pond.
 
Joined
Jun 12, 2009
Messages
18
Reaction score
0
Location
Hamilton, Ontario
ive put around 80 snails from my aquariums into my pond. I have a few hundred snails in my aquariums. They are anywhere from 1/4"-1/2" in size. I have not been able to see them since i put them in. I also put in a few mystery snails a couple years ago. I just seen one of them the other day and it was roughly 2.5"-3" in size.
 
Joined
Jul 16, 2011
Messages
12
Reaction score
2
Location
connecticut
trap doors ONLY eat dead or rotting stuff... i put 2 dozen in my pond and they just move around making tracks! they are all at least golf ball size and have neat little "antennas" too! half i cant find cause they stick to rocks and stuff....
 
Joined
Mar 20, 2011
Messages
7,230
Reaction score
4,748
Location
near Effingham, Illinois
Hardiness Zone
5b
addy1 said:
I put a whole bunch in my big pond, some in my little ponds, they crawl around eating algae. Even seen two breeding.

They only have live births and just a few babies at a time, so it would take a long time to overrun your pond.

I never knew that snails have live births! I remember as a child, finding tons of the little black snails (maybe 1/4" long) on the plants in the golf course pond. I put them in my aquarium, and they would lay a small mass of eggs, maybe 1/2" in diameter, on the glass. The tiny snails that hatched were almost microscopic.
I know that I have the tiny black snails in my farm pond, as I now have them in my koi/ goldfish pond. But, I figure the fish will probably eat some of them, and they will work on the algae, so all is good and they will stay in balance. My farm pond would not be thriving with all those cattails and other pond plants if the snails were eating all the good bacteria, or so it would seem. :)
 

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,069
Reaction score
27,544
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
JAPANESE TRAPDOOR SNAILS (Viviparis malleatus)
A pond isn’t complete without adding algae eating pond snails. The trapdoor snails are black in color and range from 1” to 3” in size. They are live bearing and will multiply. These snails can survive cold winters and temperatures below 0 degrees. To keep your pond algae in control along with plant coverage a snail will keep eating the algae on the sides of your pond, on the rocks, sides of plant containers and even on plants. Trapdoor snails will even eat decaying matter left over from fish food and plants. Japanese trapdoor snails only produce about 20 young snails in their lifetime and do so over a number of years. In calculating the number needed for your pond the rule of thumb is you should use approximately 1 snail per 20 gallons of water. If you have a larger pond you could add a percentage needed per year. Overall they are less expensive than adding algaecides weekly.
It is normal for these snails to sometimes have algae attached to their shells as they have no way of cleaning themselves. This will not promote algae in your pond and the algae will disappear from them after being in the pond if your pond is mostly algae free.



Not sure I would put one per 20 gallons.........that would be around 500 snails.
 
Ad

Advertisements

Joined
Mar 20, 2011
Messages
7,230
Reaction score
4,748
Location
near Effingham, Illinois
Hardiness Zone
5b
Great info, Addy. Thanks for sharing. I learn more new stuff on this Forum all the time! I had never even heard of the trapdoor snails until I was looking at pond items, and saw them on Ebay. That would be neat, 3" snails, and live bearers at that! I may have to look into them, since I sure have plenty of algae for them to eat. :) Maybe something to get next spring, give them all summer to grow and eat! Yeah, a per 20 gallons seems like someone that is selling them. :) And, after all the algae is gone (if that ever happens), then what will they eat? I'd rather go will far less and see if they do some good.
 

jagan314

"CARP DIEM"
Joined
Jun 30, 2011
Messages
53
Reaction score
0
Location
San Diego, California
I don't know about your ponds.. but my koi would eat those snails.. even the little ones. My son's 400 gal pond (no koi, just a few goldfish, mosquito fish, platy's and killifish) have 3 different kinds of snails in them.. the giant snails are laying their red eggs on the taro and cana lily stems.. Not sure if they are fertilized.. they are out of the water about 3-5 inches above the water line on the stem... I see the snails go at it alot... (they aren't shy).
 

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,069
Reaction score
27,544
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
I don't have koi so my snails are safe, have seen them wandering around the pond.

country your pond will never run out of stuff for the snails to eat, unless you have one of those almost sterile koi ponds that some build.
 

jagan314

"CARP DIEM"
Joined
Jun 30, 2011
Messages
53
Reaction score
0
Location
San Diego, California
Addy, that's good information... my son's pond is clear and has a well groomed amount of algea.. thanks to these snails. I heard you could eat them as well.. (don't remember where I heard this.)
 

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,069
Reaction score
27,544
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
Yuck not me no escargot, no frog legs lol Snails and frogs are safe from me.
 
Ad

Advertisements

Joined
Jun 25, 2011
Messages
57
Reaction score
2
Location
rhode island
Hardiness Zone
6b
this was a good thread to find. i have been wondering who has been using snails for algae control and how to decide the right amount
 

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,069
Reaction score
27,544
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
I put in around 100 for my pond of 9-10k gallons. I read one per 20 gallons was a good ratio.
 
Joined
Aug 26, 2022
Messages
3
Reaction score
0
Country
United States
I put in 5 this spring lost one and have not seen the others since putting them in there. It is my understanding that the trapdoors do not spread as fast like the other type of snails. I will tell you that the one that died smelled really really bad...
 
Ad

Advertisements

Joined
Aug 26, 2022
Messages
3
Reaction score
0
Country
United States
I have Trapdoor snad3
I 'm thinking of getting a few trapdoor snails for the pond. Is it a good idea or not? My wife is afraid the pond will be overrun with them in no time.

Thanks
Trapdoor snails have 1 or 2 babies so they do not overrun the pond. I've had them in my ponds for years. They are about 1 and a half inches and my Koi do not eat them.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top