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Danio's Going Bonkers
September 12, 2008
2:03 pm
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thelizzious
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Hi, friends. I need some information about Zebra Danio's. I bought 5 of them last tuesday, for my community tank (Juwel rekord 60, 60 liter) I had already 5 Neon Tetra's in the tank and I have ordered some Corydora's (don't know which ones yet as the store-keeper didn't ask or mention which ones I would like to have). The Neon Tetra's are doing wonderful, but the Danio's are acting up like insane, and somehow I seem to have lost two of them. I can't find them anywhere, not even in the filter or under leafs or whatever. The three remaining Danio's keep chasing after eachother, they're flashing through the entire tank. If this is the NTD, what am I going to do and what should I do when the new Cory's have arrived? Can they go with with the Goldies in the 120 L tank? Btw, watertests only show how hard our water is and I keep refreshing it with water I have boiled before. Both tanks are okay concerning the water values. And another thing are the plants I keep in the 60 L tank, if that one is infected, should I also get rid of the plants? /sad.gif" style="vertical-align:middle" emoid=":(" border="0" alt="sad.gif" /> /unsure.gif" style="vertical-align:middle" emoid=":unsure:" border="0" alt="unsure.gif" />

September 12, 2008
4:15 pm
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Malti
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well about the water I'd suggest aging it and not boiling it. What I mean by aging it is to add some of the old water in your tanks to new water and leaving it to settle for a couple of days. Corys shouldn't have much trouble with the goldies...although if i remember well your's  are abit big so they might try some naughty stuff, just keep an eye on them.
about the plants, if it is infected, and you cure whatever it is, should be no prob, but if they're common plants, you should probably get rid of them

September 12, 2008
4:16 pm
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mickthefish
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first thing is what is NTD?, secondly the danios have been triggered into breed mode, thats how they spawn by dashing up and down the tank chasing any female in view.

mick

September 12, 2008
4:21 pm
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Malti
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QUOTE (mickthefish @ Sep 12 2008, 05:59 PM) < {POST_SNAPBACK}>
first thing is what is NTD?, secondly the danios have been triggered into breed mode, thats how they spawn by dashing up and down the tank chasing any female in view.

mick

and what about the two MIA's mick? do you think its got to do with breeding?

September 12, 2008
4:31 pm
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mickthefish
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it's possible mate, this fish drives the females very hard.

mick

September 12, 2008
4:33 pm
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Matt
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First thing I thought was breeding activity too. I'd add more danios Liz. /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

Cake or death?
September 12, 2008
4:40 pm
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Malti
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well thats good to know /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

September 12, 2008
4:55 pm
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thelizzious
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QUOTE (Malti @ Sep 12 2008, 04:04 PM) < {POST_SNAPBACK}>
and what about the two MIA's mick? do you think its got to do with breeding?

Tow Danio's going MIA or AWol, without any trace? Within 24 hours?
How ever, I have been observing the three with my nose almost glued to front of the tank for about nearly 45 minutes and I found out that one of them keeps returning to the same spot time after time and he/she/they are chasing off the other one. So it might actually be breeding-behaviour.
That's just as surprising for me, because they have only been in the tank for three days, as the sudden disappearing of their 2 mates. I need to know what to do with the so called "intruding" danio, because I have seen an 8 cm male goldfish chasing two female almost to their death. These danio's are so tiny and they are panting so heavily that one can almost expect them to keel over and die any second. /sad.gif" style="vertical-align:middle" emoid=":(" border="0" alt="sad.gif" /> /wacko.gif" style="vertical-align:middle" emoid=":wacko:" border="0" alt="wacko.gif" />

September 12, 2008
5:24 pm
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mickthefish
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any change in the water conditions can trigger a spawn as will a fresh water change.
are you sure they have'nt flipped out of the tank, as you say they are small when dried they would be tiny, thats only a suggestion.

mick

September 12, 2008
7:12 pm
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thelizzious
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QUOTE (thelizzious @ Sep 12 2008, 05:38 PM) < {POST_SNAPBACK}>
Tow Danio's going MIA or AWol, without any trace? Within 24 hours?
How ever, I have been observing the three with my nose almost glued to front of the tank for about nearly 45 minutes and I found out that one of them keeps returning to the same spot time after time and he/she/they are chasing off the other one. So it might actually be breeding-behaviour.
That's just as surprising for me, because they have only been in the tank for three days, as the sudden disappearing of their 2 mates. I need to know what to do with the so called "intruding" danio, because I have seen an 8 cm male goldfish chasing two female almost to their death. These danio's are so tiny and they are panting so heavily that one can almost expect them to keel over and die any second. /sad.gif" style="vertical-align:middle" emoid=":(" border="0" alt="sad.gif" /> /wacko.gif" style="vertical-align:middle" emoid=":wacko:" border="0" alt="wacko.gif" />


Well nothing is impossible, I know that, but I have read up about Danio's being notorious because they jump out of the tank when needed (or not). I did my homework and closed all possible lids and holes and stuff, so I was prepared. That's the strange thing about this case, there is no trace left of them. Also, I have three cats at home and when they walk across the table the 120 L tank is on, the goldies walk right opposite with them as food friends chatting on a stroll through the park. They (cats) would have alarmed me if something fishy (pun intended) was happening.
The Danio's are still chasing each other like mad men (oops..sorry, mad fish), but the do force my Neon's into a perfect little shoal and that indeed is a very beautiful view.

September 12, 2008
7:27 pm
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Malti
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I think cats got a flying danio snack...even I got cats at home, got one cat which stays inside who's a little fishkeeper, although he never touched any of my fish, he really loves when we give him some fresh fish.

September 12, 2008
7:39 pm
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thelizzious
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NTD, for Mick who asked about this.

One of the most popular and instantly recognisable aquarium fish in the hobby. The neon is often among the first fish kept by newcomers to the hobby, and will be found swimming in the tanks of almost every aquatic shop you visit. It's popularity is well deserved as it's peaceful, inexpensive and has colours to rival those of many reef dwelling marine fish. However as it's been mass-produced in such huge numbers for many years, inbreeding has occured on a large scale and it's often not as hardy as it's claimed to be. It's also susceptible to a nasty ailment commonly known as "neon tetra disease" (NTD). This is so named as it was first diagnosed in neons, but can actually affect many other species.

When buying neons first take some time to observe the fish in the tank. If any are showing signs of restlessness, white patches on the skin, or aren't shoaling with the other fish leave them in the shop. These are all classic signs of the disease. It's caused by a microsporidian parasite called Pleistophora hyphessobryconis, and is virtually untreatable once it reaches an advanced stage. The spores (larval stage) of the parasite enter the fish through the mouth and burrow through the walls of the gut before settling in the muscles. Here they produce cysts which cause rapid degeneration of the muscle tissue and development of the characteristic white patches.

Once the disease takes hold mortality rates can rapidly become very high. The only way to "treat" the tank is to physically remove any fish showing signs of it. Confusingly similar symptoms can be observed in an illness that's actually caused by pathogenic bacteria. Often referred to as "false neon tetra disease", this one can be treated with antibacterial products. It's therefore always worth isolating and treating a fish showing symptoms of NTD, as you may be able to cure it if the bacteria is to blame.

September 12, 2008
7:52 pm
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Eyrie
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As far as I know neon tetra disease affects only a few species of tetras and so the danios couldn't have had it.

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September 12, 2008
9:39 pm
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thelizzious
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QUOTE (Eyrie @ Sep 12 2008, 08:35 PM) < {POST_SNAPBACK}>
As far as I know neon tetra disease affects only a few species of tetras and so the danios couldn't have had it.


Could be. I doubt if it is NTD because the NT are not D, if you know what I mean /wink.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" />
I thought they would settle down for the night when I put out the light, but with no success. I hope they're not dead when I wake up tomorrow.

September 12, 2008
9:59 pm
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mickthefish
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thanks for explaining, i know what it is but i've never seen it as ntd.
i was thinking of all sorts of things like now terribly dead, it's lack of sleep that does it. ( wev'e got the workmen in to refit the kitchen, rewire, and generally be a nuisance.
we have three dogs that don't whats happening tanks being turned on and of for an hour at a time.
so my head is'nt together, it probably never was but now its flown away.
so i'm relaxing in front of the pc with beer on one side of me and a bottle of malt on the other side so forgive me luv.

mick

September 12, 2008
10:10 pm
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Matt
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QUOTE (mickthefish @ Sep 12 2008, 10:42 PM) < {POST_SNAPBACK}>
so i'm relaxing in front of the pc with beer on one side of me and a bottle of malt on the other side so forgive me luv.

mick

You're really dedicated to that new exercise regime I see mate. Alternate glugs with left and right hands? /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" /> Just beer here as I'm up early to go on the collecting trip. Liz I think you'll see a difference if you add more danios. It'll reduce the chances of any single female being harassed excessively. /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

Cake or death?
September 12, 2008
10:15 pm
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mickthefish
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ah well there's a reason for this mate, i've pulled a muscle in my neck so can't go on the weights till it's right. /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" /> /wink.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" /> .
yes i'd add more danios to break it up.

mick

September 12, 2008
11:46 pm
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thelizzious
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QUOTE (mickthefish @ Sep 12 2008, 10:58 PM) < {POST_SNAPBACK}>
ah well there's a reason for this mate, i've pulled a muscle in my neck so can't go on the weights till it's right. /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" /> /wink.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" /> .
yes i'd add more danios to break it up.

mick


I am a good detective so I found out that the problem is that now there are 2 males chasing one single lady, just like humans huh? So i dumped a dozen of round tumblestones/pebles around one java fern, to invite the lady to ehm...do her thing there (I realy need a decent dutch english dictionary next to my pc, /tongue.gif" style="vertical-align:middle" emoid=":p" border="0" alt="tongue.gif" /> ). It looks like that did the trick. They are quieting down and the only movement I can see from them now are gentle and soft hovering above the new nest. Ofcourse if the deed is done it could trigger a new chase through the kitchen. So yeah, I'll buy some new danio's in the morning. I only hope I am not buying males.....They're too quick to realy see which sex they are.
No problem Mick, I knew you were ehm...distracted and I just wanted to bragg by letting you know I found the item on this forum, haha.
Plz don't pull any other muscle doing the heavy duty to your left and right hand, better do one at the time, okay? (hides under desk)

September 13, 2008
12:21 pm
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mickthefish
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glad it all settled down for you, just try to pic the heaviest looking danios out of the shop tank.
little streamliners are usually the males.

mick

September 13, 2008
3:32 pm
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thelizzious
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QUOTE (mickthefish @ Sep 13 2008, 12:04 PM) < {POST_SNAPBACK}>
glad it all settled down for you, just try to pic the heaviest looking danios out of the shop tank.
little streamliners are usually the males.

mick


Thanks Mick, but I didn't have to. When i woke up this morning...well morningish, as I am a night-owl, I found out that there has another one gone awol. I don't understand this, the whole tank has been sealed of for the night just in case some of them would dare the jump. My local petshop-owner says not to do anything, because if there is just a tiny trace of (anykind) of a disease, every new fish could get it too, which I think is very logical. Isee my neon tetra's starting to chase eachother right now as well, and there are tiny white spots on the danio's, But that could just be me, seeing stuff there isn't. It was 6 oclock when I went to bed and I was still fighting danio's in my sleep.....

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