6 goldfish all at bottom of tank laying on their sides - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 17 Old 04-08-2010, 11:03 AM
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Do you have thick plants in the tank? I can't imagine other fish could eat a pleco if it wanted to... Maybe they're just hidden somewhere and slowly rotting?
If it was me, I'd take all the large decor out (including plants) and see if you find a couple half-decomposed pleco corpses.

You mentioned that according to the strips everything is "normal". What exactly did the strips say?
Many guides for the strips say that ammonia should be <3 and nitrite should be <5, but really they should be 0.\
Also, check the PH. It could be extremely low or extremely high, which would cause similiar symptoms to poisoning. Usually "poisoning" can be temporarily treated by doing frequent water changes with fresh dechlorinated water. (w/cs will remove nitrogen compounds, other "poisons" from the air or cleaning supplies, and will slowly bring the PH closer to that of your tap water- unfortnately will also remove meds and salt.)

I also agree that you should use a magnifier and look at these "holes" you speak of closely and tell us what they look like. Are they holes? Do you mean gills when you say holes? Are they inflamed (red)? Do they have a "fuzziness" (mold/fungus) around them?
I've had sick fish like you're describing before, but usually they didn't live 24hrs after I noticed the symptoms...

definately need to take out the carbon if you're using meds, but you probably already knew that.

Worst case scenario (everything dies), scrub the tank with either strong salt water (and rinse thoroughly) or mild bleach solution (rinse thoroughly and then rinse with water again with a triple does of dechlorinator- dechlorinator neutralises bleach since it's basically chlorine gas dissolved in inert liquid) and start up again with just swordtails.

They're MUCH easier to keep, and stay small.

Good luck!

Originally Posted by Christople View Post
^^ genius

Soil Substrates Guide:
Part 1
--------- Part 2


Last edited by redchigh; 04-08-2010 at 11:11 AM.
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post #12 of 17 Old 04-08-2010, 03:19 PM Thread Starter
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They are about the same today though I did see one trying to swim a little before I went to work this morning. Any idea on when I should do another partial water change? I will go add the salt now, and the antibiotic can only be used every other day. So I will dose em again tomorrow. But I think the water change again in the next few days might be good, do you? Guess they are still alive so I am thankful.
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post #13 of 17 Old 04-08-2010, 03:35 PM
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Yeah just change the water right before you have to add the next dose of antibiotic. You don't want to be removing any active antibiotic in between dosings.
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post #14 of 17 Old 04-08-2010, 04:52 PM Thread Starter
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I only have 3 fish left and they are now breathing pretty heavily like they are gasping for breath. Anything else I should do? I may put them out of their misery. I can't stand this.
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post #15 of 17 Old 04-08-2010, 05:43 PM Thread Starter
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Ok,thanks redchigh,
I still haven't had a proper water sample done because I live about 40 miles from the pet store I use. I only have 2 fish and 1 swordtail and I have them quaranteened in anothe tank now but it doesn't look good. They are both on the bottom and gasping for air. The swordtail is fine, and I sure feel sorry for him. I know I will lose the other two goldfish now but I had to give them a chance and get them out of that tank. I don't guess I could put the little male swordtail in with one of my bettas could I? I might just change to them, I have lost so many goldfish over the years and they sure poop alot!
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post #16 of 17 Old 04-08-2010, 06:24 PM
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Full water changes and don't put the sword in with the betta! There is a good possibility that the bacteria has gotten aggressive and if there's any possibility he could bring it into the betta tank there could be trouble.

The reason you are losing so many goldfish is that they require at least 10g for each fancy goldfish, or 40g for each common/singletail goldfish. You were certainly right when you said they poop alot... they have no stomachs and therefore produce more waste inch for inch than any other tropical fish. For this reason they need double the recommended filtration (in gallons per hour) for tropical tanks, which means they need a filter that can filter the tank's volume 10 times per hour.

They also live for 10-20 (or even 40 for commons) years and reach a full size of 8-12" if they're fancy or 12-24" if they're commons.

Frankly I am surprised they lasted 5 years, espescially with the plecos who are also notoriously messy. I expect they are severely stunted... around 6 inches or less in total body length?

I decided not to even go there with the lectures on goldfish husbandry because in order to accomodate all your fish you would be looking at a 100g tank - 2000g pond depending on whether the goldies were fancy or common.

I strongly encourage you to get back on the horse with goldfish if you lose them (or if any survive)... they are a very rewarding, easy to take care of pet provided you give them enough space. By not overstocking and doing a bit of homework on goldfish care I am positive your goldfish could enjoy full, healthy, unproblematic lifespans. Keep your chin up!
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post #17 of 17 Old 04-09-2010, 03:22 PM Thread Starter
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Just an update to both of you, I lost all of them. I took the water sample to the pet place first thing this morning and NOTHING was wrong. Amonia was great. ph fine, nitrate, nitrite fine and nothing was spiked at all. They were really dumbfounded up there and so am I. My swordtail is now on his last leg as well. I'm done! I will just stick to bettas. This was too much for me. Thanks for all your help and encouragement.
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