How can i keep rummy nosed tetras without them dying?!

[coyaba]

I have had two batches of rummy nosed tetras and both have died very strangely overnight. When i went to bed on both occasions their faces were bright red and seemed healthy, and when i got up, they were all dead!!! I have a 30L Bi-Orb tank. which is cleaned out and filter pack changed approx every 4 weeks, and they are fed (along with 3 platties and 4 black widow tetras) every day with either flake food or frozen bloodworm. Cheers!

[~posy-jo~]

i know that they are very sensitive to ph levels and other fluctuations in the water, is there any chance that this could be the cause? my knowledge is limited i'm afraid so i can't really help any further. have you tried googling for info or ringing an aquatic centre?? they might have some information. i wish you luck they are beautiful fish, we have one which normally isn't a good idea but it seems to be happy and we've had it a while. anyway good luck xXx

[hammerman]

I would personally stop feeding the bloodworm. It's very high in protein and in such a small tank, this could create poor water conditions. Flake has everything they need in terms of vitimins etc. One pinch once a day is fine.

Come and join our little fishy family at http://www.uk-aquarist.com/index.php?act=idx ....join the forum, ask your questions and join in the fun.

[Tammera]

the best bet is to take a water sample to your local fish store and get the nitrates, nitrates and amonia tested. how much do you water change and how often, how do you clean the tank etc. when you change the filter media is it a complete change or parts of it?

[coyaba]

Thanks everyone...with the biorb i generally change the service pack every 4 weeks or so, and change about 1/2 the water then too. My platties are now acting wierd, kind of swimmin backwards and forwards...i got my last batch of rummy tetras from Pets at Home, i know they have a so-so reputation, could they have infected my tank??

[species2656]

these fish need softer h2o then some! by a ph test kit! also test 4nitrates&ammonia levels! you can lower pH by putting bog wood in your tank! black water extract can also help. make sure you have no shells as decorations & your substrate is not coral sand! only aquarium grade gravel! good luck!!!.......... iain.

[Tammera]

ive never bothered changing my ph, as fish tend to adapt to the local ph when in the fish shop. when i said, how much of the filter media do you change i mean, do you replace everything in the filter, if so, the bacteria that change the nitrites (bad stuff from poo/wee/food) into nitrates (safer but needs diluting by regular water changes normally about 10-20% of the water) will go when you change the the filter media. i looked up the fish tank, i personally wouldnt use it for tropical fish, but rather than replace the filter media, when you syphon the water out into a bucket or something, shake it around in the fish water (dont squeeze it or anything just get excess dirt off) you cannot have tropical fish and have a filter that needs completely replacing otherwise the water will be unsafe. the bacteria in the filter makes the water safe and takes a number of weeks to become in good working order. platties, like goldfish are extremely hardy and therefore will tollerate water (not enjoy) without the bacterial filtration. after a number of weeks when your bacterial filtration is working (this will become clear when you have no amonia or nitrites showing in a water test) you can then get more delicate fish.

once this is sorted then worry about ph if you want to, till then youll only really have the platties and guppies type.

your filter media only really traps the dirt on its own it does nothing more, you need bacteria in the filter media that takes the nasty poisons and turn them into something safe. bare in mind also when you do not dilute the nitrates it builds up and would be like swimming in soup, after a while it takes all the oxygen (oxygen prevents it from reverting back to nitrites) when the oxygen can no longer cope with the nitrates, the nitrates will revert back to nitrites and kill everything in the tank pretty much instantly when the reaction starts, and its not pretty.

[coyaba]

Blummin' 'eck!! Cheers for that. In my BiOrb I do have "ceramic media" which is little rocks on the bottom of the tank, which are never ever changed, jitys just the sponge filter which traps the old poo etc etc so i dont know if thats got anything to do with it. All my rummys have now died and i've lost at least 1 platty, so its goind pretty bad at the mo, my black widow tetras are even lookin shaky and they're totally hard too!!! Im at a loss now as to what to do for the best!

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