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Wild caught, both are sensitive to pollution, Cardinals more so then Neons. These days, many examples in the average lfs are farmed and the weaker less tolerant specimens have died already before shipping. Thus both are easier now then they were say 20 years ago. That said, I've always found...

Cherry Barbs are not a naturally schooling fish, indeed, in small tanks, two males may fight. They are best kept as a pair, or trio with one male and two females.

Never uderstood the attraction of albino versions of nice colourful fish.

Hmmm, lots of questions...

Picture is not all that clear. Looks like a young something judging by the dispropotionately large eye. A Garra species maybe, a lot of Garra rufa types around at the moment. Doesn't seem to have many dorsal fin rays so a lot of the Osteochilus and similar genera are unlikely as they tend to...

The Ember Tetra, Hyphessobrycon amandae stay small and I've seen a few of them around recently so maybe easy to source. Other Boraras species are also a good idea if you can find them. B. urophthalmoides, B. merah or B. brigittae for example.

Apart from the "general" nature of this topic, my attention was also caught by the size of some of the sigs... hint to view the sig guidlines perhaps.

A large group of Serpæ is less trouble then a small group, but they are aggressive little sods and I would not keep them with anything slow moving and "finny". I agree, they are a good looking fish, but I would never keep them in a general easy going community again.

Glowlights are one of the easier tetras to breed. Usual stuff, keep the males and females seperate for a couple of weeks to let the females fill with eggs. Feed high quality food and keep the water conditions suitable and in top form. Set up the breeding tank with excellent water, a few clumps...

That's really interesting isn't it. The two small reports I have, and indeed, fishbase, state it to be smaller then denisoni.

The converse is also true. If a tank is in a really quiet place, sudden "traffic" will cause the fish to dart out of site - self preservation, a natural response. If there is a lot of action aroud the tank all the time, fish get conditioned to it - loads of action but nothing bad happens - kind...

Sounds like you've just got an overly sensitive example there then. NTD used to be a really rare thing, but the poor hygiene of the intense farms in Asia has raised it's profile. It is still, however, uncommon.

No. The poorly named "Neon Tetra Diseae", (poor because it can affect many species and not just tetras), is caused by an infestation of sporozoan parasites. These live in the muscle of the fish. As they grow they start to become visible through the skin as a pale patch. As they continue to...

Barbus arulius. If you google that name and search images, you'll find a load. What is interesting is the fish we have called Barbus arulius for decades may not, in fact be so! There is another fish, Barbus tambraparni, which some now suspect is what we've been seeing and that B. arulius is a...

None of the fish covered in Cyprinids, Characins and Atherinids are live bearers.

No, ornata means roughly "decorated" or "ornate". Viviparus or similar spellings means livebearing. This, of course, depends on the accuracy of the classifier though. Barbus viviparus is a regular egg laying Cyprinid, but when the original specimen was dissected, it's stomach contained the...

A number of people have had denisoni just turn over for no really apparent reason. Gadazobe, (another mod), had precisely this happen. It is difficult to tell if the red marks are bites, and if they were, if they were pre/post death or causative. Red marks, especially running into the fins...

There are about a dozen valid species with "ornata" as the specifc identification, and more that are invalid. Limia ornata would be a live bearer, perhaps that is what you were thinking of? A New World species and very different from a Garra.

Only from the UK.

Garra's are Old World cyprinids, very much egg layers. I've kept a few species, although none for the last 20-25 years. Some are a little quarrelsome, but they are mostly harmless, requiring clean, well Oxygenated water - not to the extent of the Hillstream Loaches however. I don't recall...

Have a look at this and click on both of the film clips. The Hemiodus species is very nice. If it travels, (big if), it has a future in the trade, although all Hemiodus are fiddly to keep and incoragable jumpers. Can't see the parasitic catfish becoming a favourite any time soon.

Shoaling up when insecure but spreading out doing their own thing is what tetras and many other "shoaling" fish do. The shoaling up is a defensive behaviour. I've never found Red-Eyed's to be particularly aggresive, but all tetras can be a bit, nature of the beast.

I agree with Milly, I suspect something spooked it and it took off at high speed into the glass or something. The "hanging about with the nose down" is classic barb "I'm not well" behaviour - regardless of the complaint. You say the swelling has gone, assuming the swimming is normal again and it...

If there is enough space given the grouping requirements and size of both species, then certainly.

Common names are a notorious source of confusion. Barbus tetrazona is, these days, almost universally known as a Tiger Barb. Back in the misty past, I recall them being known as Sumatran Barbs though.

You could use a normally closed relay. The thermostat, when "on" would pull the relay open, switching the cooler off, when the temperature reaches the set temperature, it switches the relay coil off which closes the external circuit switching the cooler on.

But they are called "thermostat" - did you search for that? I just searched for "thermostat +aquarium" and found just what I was talking about.

Maybe look for "thermostat" instead of "thermometer switch", I'd be really suprised if you can't find a thermostat which could be used, electronic or an old bimetallic strip model. The switches used for computer fans may switch at too high a temperature to be of any use, and they are switching...

Here is another members bridge. Another here. I can't find the link right now, but there is a "grand daddy of all water bridges" somewhere. Guy has these "tubes", in his case rectangular cross section I recall, going all over his house.

There is a pinned topic here concerning euthenasia.

Neon Tetra Disease is a total misnomer. Many speacies, including non characins can be indected by sporozoan parasites. Sporozoans live in the muscle of fish, and grow slowly. When large enough, you can see them through the skin, this is the pale patches you see. As they grow further, they start...

R. agilis is a slimmer fish the pauciperforata, a really nice R. in fact. The thing that always stikes about agilis is it has a black stripe with a highlight, whereas pauciperforata has a glowlight stripe with a darker stripe which may be absent. Once a characin, always a characin.

At the end of their lives, I ended up with a single old B. everetti, she never bothered anyone. They are big fish mind, 100+mm, so in a tank that size, a decent group is going to push stocking, you seem aware of that however. Handsome and peaceful. The thing that I remember most about them was...

Barbus(Puntius) chalakkudiensis you missed an "i" ! I have never seen the fish imported, and from the scant literature, it would seem to be smaller rather then larger the B. denisonii. Do you have a reference?

I suppose the real answer is, if it was alone, and where you are you will not find others, is it worse off with you then alone in the shop? They are a shoaling fish of course, so would be better housed in numbers, but again, where from? Serious plant nibblers are B. everetti.

There are no aggressive Rasboras. The only issue is size, a real big fish that is totally peaceful will eat small fish with no bad intent, it is simply live food, in the same way a small fish will eat a mosquito larvae or brine shrimp. R. pauciperforata do not grow large and are as docile as...

Barbus(Puntius) denisoni is a species. They have a plethora of common names in the trade. Everything I have seen that has been called a Roseline Shark or Torpedo Barb or any of the other daft names has been denisoni. I am not aware of a second species using those common names. From a commercial...

Rasbora pauciperforata, Glowlight Rasbora, (AKA Redline as Gill said - common names huh?). First Rasbora I bred I think, must of been 30+ years ago, memory sometimes lets me down with the trivia! The dark line is not always apparent, in breeding garb, they can turn quite brown with the orange...

Basic premise question, at night, when you are in bed, you don't have your tank lights on anyway, so what is the issue?

Yes, and it says that where?