WormsOrLeeches Posted July 7 Share Posted July 7 Greetings yall, I recently noticed the shrimp population in my 36 gallon walstad has dwindled to nonexistent levels when I previously had dozens. Upon doing further inspection, I realized I had these little guys wiggling in my substrate! Due to the shrimp disappearance and the subsequent discovery of these worms, I'm leaning toward them being Barbronia weberi but wanted some second opinions before I go ahead and nuke the tank with Fenbendazole. I've yet to see any moving through the water column and the little suckers burrow too quickly for me to grab them out of the deep substrate. All my fish and snail populations are stabled and unchanged. Any input is appreciated! Thank you! [img]https://i.imgur.com/9vgUf5Z.mp4[/img] Sorry, I don't know how to attach the video I took so I'll link to it here: https://imgur.com/9vgUf5Z 1 Link to comment Share on other sites More sharing options...
lefty o Posted July 8 Share Posted July 8 probably planaria, not worms or leeches. 3 Link to comment Share on other sites More sharing options...
Tlindsey Posted July 8 Share Posted July 8 On 7/7/2024 at 7:58 PM, WormsOrLeeches said: Greetings yall, I recently noticed the shrimp population in my 36 gallon walstad has dwindled to nonexistent levels when I previously had dozens. Upon doing further inspection, I realized I had these little guys wiggling in my substrate! Due to the shrimp disappearance and the subsequent discovery of these worms, I'm leaning toward them being Barbronia weberi but wanted some second opinions before I go ahead and nuke the tank with Fenbendazole. I've yet to see any moving through the water column and the little suckers burrow too quickly for me to grab them out of the deep substrate. All my fish and snail populations are stabled and unchanged. Any input is appreciated! Thank you! [img]https://i.imgur.com/9vgUf5Z.mp4[/img] Sorry, I don't know how to attach the video I took so I'll link to it here: https://imgur.com/9vgUf5Z Welcome to the forum Not sure if those are leeches but definitely would nuke the aquarium. Also the snails will be killed. @WormsOrLeeches 1 Link to comment Share on other sites More sharing options...
Biotope Biologist Posted July 8 Share Posted July 8 Those are detritus worms. Leeches have a suction cup on the back end if they ever come out of the substrate look for that. Even then leeches may eat shrimplets but rarely adult shrimp you may have another cause for disappearing. shrimp are master hiders it may seem like you only have a handful then at night there are dozens swimming around 3 Link to comment Share on other sites More sharing options...
WormsOrLeeches Posted July 8 Author Share Posted July 8 On 7/7/2024 at 8:22 PM, lefty o said: probably planaria, not worms or leeches. I haven't seen them on the glass or water column so I'm not sure yet. On 7/7/2024 at 8:25 PM, Biotope Biologist said: Those are detritus worms. Leeches have a suction cup on the back end if they ever come out of the substrate look for that. Even then leeches may eat shrimplets but rarely adult shrimp you may have another cause for disappearing. shrimp are master hiders it may seem like you only have a handful then at night there are dozens swimming around This tank had dozens of shrimp and plenty would come out during feeding. If the worms aren't the cause, I really don't know what it could be. I'll try adding a dozen more and see what happens before I go scorched earth with the Fenbendazole. Interesting enough, I haven't seen any dead shrimp either but choked it up to the snails making quick work of them. Link to comment Share on other sites More sharing options...
Odd Duck Posted July 8 Share Posted July 8 On 7/7/2024 at 7:25 PM, Biotope Biologist said: Those are detritus worms. Leeches have a suction cup on the back end if they ever come out of the substrate look for that. Even then leeches may eat shrimplets but rarely adult shrimp you may have another cause for disappearing. shrimp are master hiders it may seem like you only have a handful then at night there are dozens swimming around I agree with @Biotope Biologist, those look like detritus worms. Leeches will usually go hunting along the sides or substrate and move in sort of an inchworm-ish motion, occasionally stopping and waving their front end. They don’t stay at the bottom and wave around like this. Blackworms will sit and wave like this but those look pretty thick for blackworms. Planaria also don’t just stay in the substrate and wave like this - they go hunting for food slowly crawling along flat, no lifting or waving, really. Both leeches and planaria are quite flat, too, and these look round like nematodes type worms (most nematodes are free-living, not parasites). How big are your substrate pieces? Could those be some blackworms? Like I mentioned, they look not quite right for blackworms but I can’t seem to find the closeups I thought I had of some blackworms in sand substrate for comparison. 1 Link to comment Share on other sites More sharing options...
doktor zhivago Posted July 8 Share Posted July 8 Most problems in a shrimp only tank can be solved with a couple fish On 7/7/2024 at 8:22 PM, lefty o said: probably planaria, not worms or leeches. Those are not planaria. That is an annelid worm of some kind 2 Link to comment Share on other sites More sharing options...
AtomicSunfish Posted July 8 Share Posted July 8 Ew, yuckers. Yeah, I agree they look like detritus worms. Get some fish in there to eat them. Link to comment Share on other sites More sharing options...
WormsOrLeeches Posted July 8 Author Share Posted July 8 On 7/8/2024 at 9:52 AM, doktor zhivago said: Most problems in a shrimp only tank can be solved with a couple fish Those are not planaria. That is an annelid worm of some kind On 7/8/2024 at 11:58 AM, AtomicSunfish said: Ew, yuckers. Yeah, I agree they look like detritus worms. Get some fish in there to eat them. This tank has 6 glowlight tetras, 6 ember tetras, 6 corys, a banjo cat, a bristlenose, two clown plecos and a few otos, none of which seem to be interested in the worms haha. if they're just detritus worms, I don't mind them. I like biodiversity in my tanks, just want to be sure they're not harming any of my other critters. On 7/8/2024 at 4:40 AM, Odd Duck said: I agree with @Biotope Biologist, those look like detritus worms. Leeches will usually go hunting along the sides or substrate and move in sort of an inchworm-ish motion, occasionally stopping and waving their front end. They don’t stay at the bottom and wave around like this. Blackworms will sit and wave like this but those look pretty thick for blackworms. Planaria also don’t just stay in the substrate and wave like this - they go hunting for food slowly crawling along flat, no lifting or waving, really. Both leeches and planaria are quite flat, too, and these look round like nematodes type worms (most nematodes are free-living, not parasites). How big are your substrate pieces? Could those be some blackworms? Like I mentioned, they look not quite right for blackworms but I can’t seem to find the closeups I thought I had of some blackworms in sand substrate for comparison. The substrate you see around them is medium grain black diamond blasting sand capping over potting soil. The worms look bigger in the video than they are, they're no thicker than, say, a sag root. 2 Link to comment Share on other sites More sharing options...
doktor zhivago Posted July 8 Share Posted July 8 On 7/8/2024 at 2:51 PM, WormsOrLeeches said: he worms look bigger in the video than they are, they're no thicker than, say, a sag root. your fish are already controlling their numbers. i suspect your shrimp problem may be something else then. 1 Link to comment Share on other sites More sharing options...
WormsOrLeeches Posted July 8 Author Share Posted July 8 On 7/8/2024 at 3:35 PM, doktor zhivago said: your fish are already controlling their numbers. i suspect your shrimp problem may be something else then. I'll be adding a couple dozen shrimp today to see what happens. Link to comment Share on other sites More sharing options...
AtomicSunfish Posted July 8 Share Posted July 8 (edited) On 7/8/2024 at 1:51 PM, WormsOrLeeches said: This tank has 6 glowlight tetras, 6 ember tetras, 6 corys, a banjo cat, a bristlenose, two clown plecos and a few otos, none of which seem to be interested in the worms haha. Bring on the cichlids or gouramis! 😁 Or livebearers or minnows! 😄 Edited July 8 by AtomicSunfish 1 Link to comment Share on other sites More sharing options...
WormsOrLeeches Posted July 9 Author Share Posted July 9 On 7/8/2024 at 5:45 PM, AtomicSunfish said: Bring on the cichlids or gouramis! 😁 Or livebearers or minnows! 😄 I've been thinking of adding a couple small gouramis, but I always feel it'd be a little crowded for them. The tank is very heavily planted. Link to comment Share on other sites More sharing options...
Rube_Goldfish Posted July 9 Share Posted July 9 On 7/9/2024 at 2:22 AM, WormsOrLeeches said: I've been thinking of adding a couple small gouramis, but I always feel it'd be a little crowded for them. The tank is very heavily planted. Honey gouramis are interesting, colorful, and generally peaceful. A trio of sparkling gouramis would likely work, too. Both species are pretty small. 1 Link to comment Share on other sites More sharing options...
AtomicSunfish Posted July 9 Share Posted July 9 (edited) On 7/9/2024 at 1:22 AM, WormsOrLeeches said: I've been thinking of adding a couple small gouramis, but I always feel it'd be a little crowded for them. The tank is very heavily planted. A lone honey gourami would be good. Dwarf cichlids would be good, too. The tetras you have are midwater fish, so they’re good at controlling plankton, but not benthic prey. Your plecos and otos like to scrape algae and aufwuchs, so they don’t root around much either. I'm a little surprised your cories and banjo catfish aren’t interested, because they are benthic feeders. But then, they do scavenge a lot, so maybe the worms are a bit too entrenched for them. But gouramis are active micro-predators, and cichlids especially like to excavate in the substrate. One of those would likely be a good choice for top-down control. And again, livebearers are good at pecking on the bottom, too. Some minnows are good benthic feeders, but not all. Edited July 9 by AtomicSunfish Link to comment Share on other sites More sharing options...
Odd Duck Posted July 10 Share Posted July 10 On 7/8/2024 at 1:51 PM, WormsOrLeeches said: The substrate you see around them is medium grain black diamond blasting sand capping over potting soil. The worms look bigger in the video than they are, they're no thicker than, say, a sag root. That’s likely blackworms, tubifex, or something similar. I’m very surprised the cories haven’t eaten them. Maybe try feeding some catfish pellets over top of those worms and see if they disappear. They may be in a spot where the cories don’t frequent or the worms are so used to cories being around they’re super fast to retract into the substrate. Link to comment Share on other sites More sharing options...
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