|Topic Review (Newest First)|
|12-06-2012 02:36 PM|
|12-06-2012 04:50 AM|
|Calmia22||My shrimp typically eat any planaria before they get big. I might see little 1/4" worms, then as the shrimp scavenge for food they find them and eat them.|
|12-06-2012 04:40 AM|
Loose a $500 PRL or Pinto TB and I bet you would hate planaria as you watch a berried female carrying $10,000 in eggs get killed by a planaria.
|12-06-2012 03:25 AM|
I suppose it's all relative to your opinions though, because while losing a shrimp every once in a while may not 'cause serious alarm' for one person, for another person it could be a disaster. I prefer to keep my shrimp safe from any potential harm (at least the ones I can control), that's why I keep them away from fish, and I change their water weekly, and I feed them food, keep their water at a specific temperature, etc. The pest control simply is another part of their life I can control.
|12-06-2012 03:19 AM|
Ok to clarify or maybe summarize:
Planaria, can and will attack shrimp, when, how and why is subject to debate.
I think most would agree that:
Planaria are not a serious threat to shrimp and do not have to be eliminated. The population density of the Planaria as well as your desired degree of shrimp production may encourage one to medicate to eliminate Planaria, but Planaria in a shrimp tank are not cause for serious alarm. In fact Planaria and shrimp can coexist in a tank for months, possibly years.
|12-05-2012 08:02 PM|
|12-05-2012 06:45 PM|
Checked youtube, here's what I found
Planaria attack kind of but shrimp swims away
Planaria attack but the shrimp looks dead...
Described as attacking but looks like shrimp was dying?
This seems pretty bad but I think shrimp is dead here too?
Shrimp and Planaria feeding together!
I did come across this though....
This is from the paper I've 5 year ago. Planaria & hydra are the only 2 known pest that can kill shrimp. Planaria have this toxin which are use for self-defence against any moving object. It only work on close proximate. Didn't say anything about toxic being in the tank until it reach a deadly level for shrimp, I guess with being that small will take forever to get to that level thus any water change will dilute it.
It also stated that since shrimp are scavenger, the will eat just about anything that on the ground & they have a pouch in the head area that can collect all the unwanted toxin or polutant while ingesting food. But being CRS & CBS, thier pouch cannot release the subtance out from the body which being collect & once full it go into the body & the shrimp will die. As for baby shrimplet from born to 2 week, they only survive mainly on micro-bacteria & this pouch is not fully function. Since they like to stay where most planaria is, this make them the top target & will never survive any toxic that come into contact. Once dead it will mostly eaten by adult shrimp.
One thing I'm not clear on is if Planaria have a toxin on their surface wouldn't they be able to drive shrimp away in the last video?
|12-05-2012 05:45 PM|
|12-05-2012 05:40 PM|
As i was reading this post i watched my shrimp fighting each other over food lol. I have even watched them Chase my pygmy Cory away
Sent from a dark corner in my happy place
|12-05-2012 05:12 PM|
I am sure the shrimp attacked the Planaria, I've researched them enough to recognize them. and I'm certainly not saying that Planaria won't attack shrimp but, I guess I felt I wanted to clarify that Planaria aren't voracious shrimp killers that have to be eliminated.
1) I have Malawa maybe they don't have the same sensitivity as the Neocards?
2) there is species differences in Planaria as to aggressiveness etc.
As for the picture, it doesn't quite make sense, how did so many Planaria get on the shrimp?, shrimp are so much faster, I'd like to see a higher resolution photo. Certainly anythings possible but I think that pic is a very rare unusual event...
|12-05-2012 03:24 PM|
|12-05-2012 02:20 PM|
I wouldn't trust planaria.
|12-05-2012 06:33 AM|
Your logic is flawed. Shrimp attacked planaria, therefore planaria do not attack shrimp?
There are several kinds of planarian, and although some MIGHT be harmless, there are definitely kinds that harm and kill shrimp.
I have witnessed it with my eyes, so I know that it happens. My logic is: Planaria attacked shrimp, therefore planaria attack shrimp
|12-05-2012 05:59 AM|
|12-05-2012 05:28 AM|
Shrimp are detritivores, they don't attack alive things so I doubt it dove into a swarm of worms and attacked them.
Are you sure the worms are planaria? I've had many different kinds of worms that I thought were planaria, but turned out not to be. There is pictures and I believe even youtube videos people have posted of planaria attacking and killing shrimp.
Maybe it is only one kind of planaria worm that we identify as the shrimp attacking kind, while the true meaning of planaria is the entire group of certain kinds of flatsworms, as some can live on land, in moist areas, dry areas, some are underwater, some are freshwater, some are saltwater, so perhaps us "shrimpers" use the term more specific for a certain kind common to freshwater tanks and being submerged that attack shrimp, but it does happen.
You have many other worms or they just didn't get to attack the shrimp, but I still highly doubt the shrimp went after worms, they were alive.
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