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who's eating who? or Ten Little Indians

1724 Views 23 Replies 11 Participants Last post by  jesstray
stock:

3 rasbora hets
1 cardinal tetra
3 neon tetras
1 male fancy guppy
1 albino bristlenose pleco
1 true SAE
4 ghost shrimp

had a BUNCH of guppies, a couple more rasbora hets, and tetras once upon a time but they all eventually had fins eaten away and then died. i initially blamed the guppies since they were the only ones dying but now there's just one left and he's got a couple LARGE chunks taken from his tail.

anyone have any idea who the culprit might be?
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the guppy's tail looks a lot like a couple bites were taken out.

if it was fin rot... what to do about it?
Fin rot and most other diseases are a result of stress due to unfavorable environmental conditions. What exactly, who knows...

Another possibility could be the "ghost shrimp". I never had any that seemed overly aggressive, but there are some out there that grow bigger claws and might attack fishies.
Fin rot and most other diseases are a result of stress due to unfavorable environmental conditions. What exactly, who knows...

Another possibility could be the "ghost shrimp". I never had any that seemed overly aggressive, but there are some out there that grow bigger claws and might attack fishies.
it's not the shrimp, too small and are always on the bottom. could it be the SAE?
Another vote for fin rot. I had some long fin rosy barbs that had chunks of tail missing after living peacefully with tiger barbs for a couple months. It really looked to me like chunks were being bitten off, so I assumed the tigers had turned killer. A couple days after the last of the rosy's died, my tigers started getting ick. Turned out my nitrates were way high.
i'll do a massive test on everything to check...
Check your tank for any other "pests" that might be introduced via the plants you have.(they may hide during the daytime if your have a lot of plants) I once had a small wood shrimp that I had not purchased take a ride into one of my tanks via a bunch plant I bought. He began pinching at the tails just like your noticing. (even though it looked really timid).

It probably is just fin rot though, if you have a good Disease ID book on hand take a look at the picture of what fin rot looks like compared to "nipped" fins, and see if your fishes tails have the appearance of one of them.
Another vote for fin rot. I had some long fin rosy barbs that had chunks of tail missing after living peacefully with tiger barbs for a couple months. It really looked to me like chunks were being bitten off, so I assumed the tigers had turned killer. A couple days after the last of the rosy's died, my tigers started getting ick. Turned out my nitrates were way high.
pH: 7.8
ammonia: 0
nitrite: 0
nitrate: 10
phos: 0.5-1.0
Gh: 18º/322ppm
Kh: 14º/250ppm

nothing here looks out of whack...
Check your tank for any other "pests" that might be introduced via the plants you have.(they may hide during the daytime if your have a lot of plants) I once had a small wood shrimp that I had not purchased take a ride into one of my tanks via a bunch plant I bought. He began pinching at the tails just like your noticing. (even though it looked really timid).

It probably is just fin rot though, if you have a good Disease ID book on hand take a look at the picture of what fin rot looks like compared to "nipped" fins, and see if your fishes tails have the appearance of one of them.

nope... no pests. grrr.... i think i'm starting to blame my SAE since i can't think of anything else...
I'm thinking fin rot as well. Also, some ghost shrimps maybe incorrectly labeled and maybe the culprit as well.
My vote is for the ghost shrimp. Even though they are small, they do attack other fish. Being an invert, they are most active at night. Fish like to go all mellow usually and sorta pick a spot to rest, and ghost shrimp very well known to catch and attack fish.
how big is this tank?
Goldfish have been known to nip.
Heck, they'll try to eat the guppy if they're the right size.

ps.. you got a cold water fish with tropicals. Not sure if that's so good.
how big is this tank?
Goldfish have been known to nip.
Heck, they'll try to eat the guppy if they're the right size.

ps.. you got a cold water fish with tropicals. Not sure if that's so good.
Where did you get goldfish from? I did not see any mention of it in his post.
I'm going to go out on a limb and go off in a new direction. Has anyone considered the fact that there is only 1 Cardinal in that tank and only 3 Neons in the tank?!? Characins need larger groups, even the peaceful little neon or cardinal can be a nippy fish if not kept properly. Groups of anything less than 6-7 of these fish are needed for them to be comfortable. These fish will nip at others and each other if not kept in proper numbers. Seems somewhat surprising until you consider another species of fish in that family: Piranhas! The nature is still there, it runs through the entire family.
My vote is for the ghost shrimp. Even though they are small, they do attack other fish. Being an invert, they are most active at night. Fish like to go all mellow usually and sorta pick a spot to rest, and ghost shrimp very well known to catch and attack fish.
i may take em out and see if it helps.

but it seems to just be the guppies... strange.

would RCS be better for the other fish?
how big is this tank?
Goldfish have been known to nip.
Heck, they'll try to eat the guppy if they're the right size.

ps.. you got a cold water fish with tropicals. Not sure if that's so good.
goldfish? huh? there's no goldfish
I'm going to go out on a limb and go off in a new direction. Has anyone considered the fact that there is only 1 Cardinal in that tank and only 3 Neons in the tank?!? Characins need larger groups, even the peaceful little neon or cardinal can be a nippy fish if not kept properly. Groups of anything less than 6-7 of these fish are needed for them to be comfortable. These fish will nip at others and each other if not kept in proper numbers. Seems somewhat surprising until you consider another species of fish in that family: Piranhas! The nature is still there, it runs through the entire family.
i just added 4 more neons so there are now 7

i can't seem to find any cardinals around here... grrr.
i vote for the SAE. i have read that they can be a bit nippy. i have never kept one or observed them, but i have read this on several accounts. it coud be fin rot though. put some aquarium salt in. 1TBS per 5 gallons. wait a wihle and see if it helps. if not, treat with the proper medecation. if nothing happens after this, try taking out the SAE, and other fish, one at a time, to see when this stops. Wait, actually, reverse that. remove the fish one at a time, and put them in like a holding tank (a ten gallon would do), then if nothing happens, treat for fin rot.
already removed the SAE. had a rasbora het die but i think it was a previously inflicted injury type thing. we'll see if anything else happens.
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