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New tank deaths :(

This is a discussion on New tank deaths :( within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I've found that many of the fish I get at petstores are in such poor condition that by the time I get them home, ...

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Old 09-20-2011, 03:07 PM   #11
I've found that many of the fish I get at petstores are in such poor condition that by the time I get them home, the stress of the move was too much for it to overcome. I also recently had a fish get caught on the filter intake (it was larger so it couldn't get sucked IN, just stuck to it). I had purchased it with several other fish of the same species, from the same tank. The other 2 were and still are fine. My conclusion is that the store tank quality and care was very poor, and this particular fish wasn't strong enough to overcome that.

If your other fish are fine and your parameters are good, I would give it more time. I don't know much about endlers, but I do know that bettas don't have to be physically attacking to do damage to smaller fish. They also can take a long time to adjust to new tanks, ESPECIALLY when going from a small bowl in the store to a BIG tank in your home - believe it or not, the extra space is not always immediately welcomed by the betta, but he will get used to it as long as he has plenty of hiding spaces.
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Old 09-20-2011, 05:56 PM   #12
Thanks for the info, but unfortunately we are now betta-less :( we found him dead with his tail stuck in the filter this evening . We are really getting a bit frustrated now! Do you think the filter could be a problem, or is it likely that he (and the endler that got sucked in) were just too weak too get away? It's such a shame as the tank was a birthday pressie for the bf, but we're really not having much luck! We are now down to 6 tetras....
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Old 09-20-2011, 07:31 PM   #13
Well, what type of filter do you have (brand name and power)? If it was purchased with the tank, it's not likely to be too strong, but if you bought it separately and it's meant for a bigger tank, there's a chance the current was just too much. Bettas don't do well with current. If you could post information about the tank, equipment, decor, any water additives, cleaning schedule, lighting, food, etc. it will be helpful for us to help you figure out what's going on. Bettas are pretty hardy, and it's usually pretty obvious when they're sick, so I'm guessing at least in his case it wasn't just poor treatment at the store.
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Old 09-21-2011, 04:42 AM   #14
It's an Interpet PF2 (Interpet PF2 Internal Filter Aquariums > Internal Filters > Pumps and Filter Media > Aquatics > Main Section > UKPetSupplies) . It was bought as a package with the tank from pets at home, so the correct one for the tank I would hope! :) I had switched it to the lowest setting, after the endler was found in it. The tank is this one Fish Box 60cm Tank by Interpet (Available In Store Only) | Pets at Home to which we have added some gravel & sand substrate, a tiki head & palm tree ornament, 5 plants, a piece of bogwood (which was soaked for 2 weeks beforehand) and the heater (at 24-25C) , which also came with the tank.

The tank has a blue & normal light, we only really use the normal light, which is switched on before going to work and turned off when were back (so about 8-9 hours), although we had it switched off on the day we introduced the fish.

Since getting the fish on Saturday, I have been doing a small water change each day, as the nitrates seem a bit high (around the 40 mark), and they usually drop to somewhere between 20-40. I was a bit concerned about doing lots of larger water changes, as I don't want to stress the fish too much.

As for food, we've been feeding them generic tropical fish flakes, a few a day, for a few minutes, which the tetras seem more than happy with, but the endlers and the betta never touched.

I couldn't see any obvious signs of illness on the fish (but can't say I'm an expert in the matter!) but the betta generally just seemed pretty lacklustre after the second day, spending most of the time lying at the bottom of the tank, and two of the endlers kept zooming around at the surface of the water.
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Old 09-21-2011, 05:17 AM   #15
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Hmm, I had some ideas on this but then i realized your ammonia was 0. =/ It really seems odd to me that they would die. The nitrate is a bit high, though. Do some water changes. Your base nitrates in your tap water are high... is there a condition to rid them of the nitrates? Also, bettas are pretty hardy in my experience... id have expected the neons over the betta.
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Old 09-21-2011, 06:09 AM   #16
I have been doing small water changes each day since getting the fish, about 25%, should I do a larger one, 50% or more, or will that stress the fish too much?
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Old 09-21-2011, 06:15 AM   #17
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50% should be fine. I do 50% in my aquarium when I do water changes. I never do less than that. The part that concerns me, although I do not know a ton about all this stuff in particular, is that your tap water nitrates appear to be 20 ppm. If I am doing my math correct, even if you change 50% of water with 40 ppm nitrates, adding 20 ppm nitrate water will give you 30 ppm. It will be very hard to get water with low nitrates. I think 20-40 ppm is still a bit high but idk for sure. Maybe you can consider RO water or something. (Be aware the PH might differ, so dont just change right away) The problem may be that you've added too much fish at one time? More fish = more nitrates.
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Old 09-21-2011, 06:38 AM   #18
Yeah I was a bit concerned that the nitrates could be the problem. Should we try adding more plants, to use them up? Or if not, does anyone know of any good water suppliments that will remove nitrates? I will try the 50% water changes from now on. Do you recommend doing on every day for the mean time? There are only 6 tetras left now, so I guess we will leave it as that for a bit, I don't want to risk adding any more, to find they die too!
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Old 09-21-2011, 08:32 AM   #19
I would add more live plants (make it look like a jungle in there), and continue with the larger water changes for a while. The tetras prefer soft, acidic water which is the opposite of what you've got. I wouldn't recommend any water additives to remove the nitrates (or any additives at all, for pH or ammonia or anything. It tends to be bad for the fish).

It's definitely possible that you added too many fish at once and that's why your nitrates are so high. Have you retested, remembering to shake reagent #2 for almost 2 minutes instead of the 30 they recommend? ANd don't forget that it needs to sit for 5 minutes before you get an accurate reading.

With fewer fish, more plants, and water changes your tank will hopefully even itself out. I think 50% water changes daily are a lot, maybe 50% every other day, or 25% daily with a weekly 50%. But I can't remember anymore how big your tank is.
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Old 09-21-2011, 08:40 AM   #20
I'm the other half of Uhohima's dilemma.

Our tank is either 63 or 64 Ltrs. Making the place look like a jungle sounds like a good idea.

Thank you for all the help so far, we're at a loose end with it and it's heartbreaking.
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