All bugs found in my house get fed to the puffers... today i found the mother of all spiders (i live in the UK where there are no venomous spiders) and fed it to my F8's.
The smallest one (approx 1" long @ 4month old) had a go. Well the spider wrapped round it and had a grip for a while but eventually he shook it off. This was about 3 hours ago. Now the little F8 looks in a bad way... He was at the top of the tank floating in a plant. I've put him in a sick net where he's hardly moving at all... I'm a bit gutted I might have done the little fella some damage feeding him and so i ask the question. Could this spider have bit my F8 and could he be dying?
Can a spider kill a F8
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Read this before posting!!
Since this board has been up, we have found there are several questions that routinely get asked in order to help diagnose problems. If you can have that information to begin with in your post, we'll be able to help right away (if we can!) without having to wait for you to post the info we need.
1) Your water parameters - pH, Ammonia, Nitrite, Nitrates and salinity (if appropriate). This is by far the most important information you can provide! Do not answer this with "Fine" "Perfect" "ok", that tells us nothing. We need hard numbers.
2) Tank size and a list of ALL inhabitants. Include algae eaters, plecos, everything. We need to know what you have and how big the tank is.
3) Feeding, water change schedule and a list of all products you are using or have added to the tank (examples: Cycle, Amquel, salt, etc)
4) What changes you've made in the tank in the last week or so. Sometimes its the little things that make all the difference.
5) How long the aquarium has been set up, and how did you cycle it? If you don't know what cycling is read this: Fishless Cycling Article and familiarize yourself with all the information. Yes. All of it.
We want to help, and providing this information will go a LONG way to getting a diagnosis and hopeful cure that much faster.
While you wait for assistance:
One of the easiest and best ways to help your fish feel better is clean water! If you are already on a regular water change schedule (50% weekly is recommended) a good step to making your fish more comfortable while waiting for diagnosis/suggestions is to do a large water change immediately. Feel free to repeat daily or as often as you can, clean water is always a good thing! Use of Amquel or Prime as a dechlor may help with any ammonia or nitrite issues, and is highly recommended.
Note - if you do not normally do large water changes, doing a sudden, large water change could shock your fish by suddenly changing their established water chemistry. Clean water is still your first goal, so in this case, do several smaller (10%) water changes over the next day or two before starting any large ones.
Read this before posting!!
Since this board has been up, we have found there are several questions that routinely get asked in order to help diagnose problems. If you can have that information to begin with in your post, we'll be able to help right away (if we can!) without having to wait for you to post the info we need.
1) Your water parameters - pH, Ammonia, Nitrite, Nitrates and salinity (if appropriate). This is by far the most important information you can provide! Do not answer this with "Fine" "Perfect" "ok", that tells us nothing. We need hard numbers.
2) Tank size and a list of ALL inhabitants. Include algae eaters, plecos, everything. We need to know what you have and how big the tank is.
3) Feeding, water change schedule and a list of all products you are using or have added to the tank (examples: Cycle, Amquel, salt, etc)
4) What changes you've made in the tank in the last week or so. Sometimes its the little things that make all the difference.
5) How long the aquarium has been set up, and how did you cycle it? If you don't know what cycling is read this: Fishless Cycling Article and familiarize yourself with all the information. Yes. All of it.
We want to help, and providing this information will go a LONG way to getting a diagnosis and hopeful cure that much faster.
While you wait for assistance:
One of the easiest and best ways to help your fish feel better is clean water! If you are already on a regular water change schedule (50% weekly is recommended) a good step to making your fish more comfortable while waiting for diagnosis/suggestions is to do a large water change immediately. Feel free to repeat daily or as often as you can, clean water is always a good thing! Use of Amquel or Prime as a dechlor may help with any ammonia or nitrite issues, and is highly recommended.
Note - if you do not normally do large water changes, doing a sudden, large water change could shock your fish by suddenly changing their established water chemistry. Clean water is still your first goal, so in this case, do several smaller (10%) water changes over the next day or two before starting any large ones.
- lazee
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Can a spider kill a F8
If you're not living on the edge... you're taking up too much room
Re: Can a spider kill a F8
IMO I'd say it's possible. Poisonous to humans probably not but to my knowladge spiders eat by injecting venom into victims the venom numbs/paralyzes/kills the victim while turning their insides to liquid the spider can suck out later. Which is why spiders wrap their prey in silk to hold the liquid for later.
Obviously you are watching your puffer... depending on the power of the venom the puffer survive.
IMO
Obviously you are watching your puffer... depending on the power of the venom the puffer survive.
IMO
- lazee
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Re: Can a spider kill a F8
Yeah I agree with what the spider can do which is why... now with hindsight I'm a bit worried about my F8. He's getting worse but hope he'll be ok. I don't know if there's anything I can do to help him though?
Really pi**ed of wi myself if I've killed him

Really pi**ed of wi myself if I've killed him
If you're not living on the edge... you're taking up too much room
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Re: Can a spider kill a F8
if you know the kind of spider it was you might be able to read some information about ti and find out just how potent its venom is on things more the size of your puffer, such as a small mouse or something similar to get a better feel for if your puffer will die or is just having a reaction to the venom and will recover.
- lazee
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Re: Can a spider kill a F8
No idea what kind of spider it was... just a big one; about 2" across but was mostly legs and little body. I always feed the spiders in my house to my fish but this is the biggest I've ever found.
In the UK i would reckon the biggest prey this spider would have normally eaten would be moths and such like i.e other bugs.
In the UK i would reckon the biggest prey this spider would have normally eaten would be moths and such like i.e other bugs.
If you're not living on the edge... you're taking up too much room
Re: Can a spider kill a F8
Ya if it wasn't potent venom he's probably paralyzed or stunned, hopefully it should hopefully pass...
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Re: Can a spider kill a F8
My ex F8 ate a yellow jacket, including the head, stinger and all abdominal organs including the poison sack, and he still seems fine.
No matter how magnificent your successes or devastating your failures, the worlds' approximately 5 billion impoverished people could not possibly care less.
- lazee
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Re: Can a spider kill a F8
An update...
Came down the stairs this morning and looked straight in the tank. Although a bit sluggish he's a lot better. So i've released him back into the main tank and he's buzzing about (slowly) but appears happy. Looks like he was just badly stunned.
Hardy little fella

Thanks all
Came down the stairs this morning and looked straight in the tank. Although a bit sluggish he's a lot better. So i've released him back into the main tank and he's buzzing about (slowly) but appears happy. Looks like he was just badly stunned.
Hardy little fella
Thanks all
If you're not living on the edge... you're taking up too much room
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Re: Can a spider kill a F8
I guess we can all learn from this one.
You are getting sleepy... you only hear the sound of my voice... you must do water changes... water changes... water changes... water changes...
"The solution to pollution is dilution!"
"The solution to pollution is dilution!"
