new feeder goldfish questions - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 8 Old 07-11-2014, 10:53 PM Thread Starter
Red face new feeder goldfish questions

Hi guys, I want to start off by saying though I am new to this site I have been keeping fish for a long time. That said I am going to ask a question about probably one of the least appreciated fish except by kids.

What would you say is an acceptable loss/survive rate for a group of say 20 feeder goldfish. I know, I know, theoretically the answer is no loss is acceptable. However, death of a fish is usually inevitable when first stocking a tank, even more so when we are talking about feeder goldfish that were bought from an overcrowded tank and probably diseased, weak, and starving.

The tank they are in was just torn down and reset due to a severe problem with what I believe to be a fungus, that was killing everything it touched and couldn't be fixed without a complete teardown and sanitation. It used to house Oscars but after the problems I had with that and how much it sucked to lose everything I just want something simple this time around. And now after losing a few of the feeders I'm just worried I still have the fungus. Also...before anyone suggests it I'm confident its not ammonia/nitrite poisoning since I test for it daily and maintain a vigorous water change schedule as needed....(again...not a new fish keeper).

Thanks for reading through my rant and taking time to respond.
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post #2 of 8 Old 07-11-2014, 11:21 PM
First off, welcome to TFK! How large is the tank? I want to make you aware that to house 20 feeder goldfish or comets, you would need an 800 gallon tank. Each comet goldfish needs 40 gallons to itself to compensate for the adult size (12"+) and it's bioload with an appropriately rated filter.

Last edited by Flint; 07-11-2014 at 11:24 PM.
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post #3 of 8 Old 07-11-2014, 11:45 PM Thread Starter
The aquarium is 300 gallons. While I understand this is not large enough for full grown goldfish I am content with this for the time being as I also have a koi pond. Also I am taking into consideration the ones that wont make it. Any ideas on what would seem like a likely/acceptable loss for 20 feeders considering the factors listed above?
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post #4 of 8 Old 07-11-2014, 11:56 PM
If you properly care for them you won't lose any.
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post #5 of 8 Old 07-12-2014, 12:08 AM Thread Starter
Yeah that is typically the way I look at it too. But feeder fish being what they are typically have compromised health before you even buy them. For example some of the ones I got had clamped fins, sunken bellies, torn/rotted fins, etc... These were the fish that didn't make it so far....obviously I didn't pick the ones I bought. Most looked good but considering general weakness due to being "stored" in less than ideal conditions I wonder how many are still waiting to succumb to things done before I had them. Hopefully, the weak have been culled now and I will have no further losses...only time will tell I guess.
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post #6 of 8 Old 07-12-2014, 05:39 PM
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i find often the ones who went through the worse never die i had a feeder who would not kick the bucket when i was younger we gave it to somone with a pond that sucker is almost 10 inches now he had torn clamped fins and for the first week he swam sidways
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post #7 of 8 Old 07-13-2014, 04:02 PM
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Welcome to TFK!
You must understand feeder fish are not "made" to survive.. they are treated pretty harshly in transit and in stores. Many of them carry disease (which is why a lot of people with predator fish avoid feeding them to their fish nowadays). I know there are lots of stories of a feeder goldfish growing huge and living for ever, but a much larger portion of them will die pretty quickly.
That does depend on where you got them, you should be a good judge of them since you have experience with fish, if they look skinny or sickly, even though without symptoms they can be dying of just as badly..

Now, hear me out.. I am absolutely smitten with fancy goldfish.. I mash up my own food, pet them, I even have one of my past orandas tattooed on my back. What I wouldn't do for 300 gallons (have a 90 for mine). Don't you however feel it's a bit of a waste to fill a 300 gallon with feeder goldfish? ;)

Anyways, that's not the point.. I don't know of anything that would survive a complete cleaning like that (minus perhaps a particularly aggressive strain of Mycobacterium). I'd have to guess it's just that they are feeders and just dying off from whatever was troubling them... I don't think there is anyway to determine an average amount of feeders to die, since stores all will treat them differently.

taking a break from fish-keeping.
3 lovely male betta still keep me company.
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post #8 of 8 Old 07-16-2014, 12:40 AM Thread Starter
Thanks Olympia for directly answering the question I asked. I do understand exactly what you said about them not being built to survive. That's exactly what prompted me asking what I did.

As for fancy goldfish, while I can appreciate them for what they are, I just personally don't care for them at all. To me they kinda look deformed or something. Of course plain 'ol regular goldfish normally wouldn't be my choice for the showpiece so to speak in any aquarium and yes I do in fact kinda feel like it is a waste of a tank that big. The only thing that lead me to that choice is that when they get big they can be quite an impressive, sizeable fish and after my losses I kinda felt defeated and didn't care to take a shot at Oscars or cichlids or the like for a while. Nor did I want to dive into turning a tank that big into a community tank, and saltwater I already have setup in another as a reef, LOL. And of course I really wanted it set up again no matter what was in it.

To delve a little further into the infection. It grew like a fuzz/bacterial slime. Kinda like what happens if a fish or fish food or something starts to rot in your tank and you don't catch it until too late. Only thing is it was covering everything even the fake decorative rocks I had and the glass. No matter what I did I couldn't fix it. Multiple 100% water changes didn't even do it. By multiple I mean like 10-20 while letting the tank sit empty. After months of trying to battle this without drastic measures I finally got tired of it and took drastic measures. First I got some kind of store bought medication and way overdosed and just let it sit there filtering. Then I changed the water and dumped lots of vinegar in it and let that sit for a few weeks. Then I did the same thing with bleach. Finally I drained all the water again and super-saturated the water with plain old salt. Basically anything I could think of that would kill molds, fungus, parasites, etc. I did. After the salt water sat for a while and I had salt creep all over the place I finally cleaned everything up and got more fresh water in and let it run for a while again before putting anything in there. And now I am with the goldfish lol.

Well, now I'm done ranting and raving. Thanks for looking.
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