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Blue Gourami are actually a pretty pugnacious species and grow large enough to become an issue.

All commonly available Rasbora species are perfectly harmless, ideal quiet community fish. All best kept in reasonable size groups, (say 6+), otherwise they tend to hide and sulk. Probably my favourite group of fish.

Thats a nice video there. The other fish are interesting as well.

I've not kept Serpæ's for more than 40 years. I had one male in the group that was manic and nipped at everything. Black Neons and Glowlights are harmless enough. There are very many tetras, only a few of the commonly available types are avertly aggresive.

For decades known as Barbus conchonius, then Puntius conchonius, and currently Pethia conchonius. In the trade, Rosy Barb or Rosey Barb. Wild specimens can grow 100mm or a little over, but they are generally peaceful unless presented with obvious food, (read great long flowing fins etc.). The...

Are we talking about Rasbora borapetensis here? Common names vary over the world, so you can never be sure. I've not had R. borapetensis with red dorsal fins before. I have heard that Malayan specimens, ie. the most southerly extent of their range, do have more red colouration however. Do you...

Trigonostigma somphongsi perhaps, (formally Rasbora somphongsi). The picture is not great, but does not look like a tetra. Can't see an adipose fin, though, of course, that doesn't prove anything. Rasbora heteromorpha, (now classified as Trigonostigma heteromorpha), are not Danios.

>>> Barbs are Quite nippy :rolleyes: The barbs are a very large group of harmless peaceful fish punctuated with a VERY few "nippy" species. It riles me when I see this preposterous statement.

Neons are egg scatterers, externally fertilised. As such, can never be pregnant. They breed in acidic, VERY soft water, (like zero or close to hardness), and are regarded as a challenge to breed. You should look for other causes of the problem, if, indeed, it is a problem. They can stuff...

>>> I'm pretty sure are a close relative Indeed, espei and heteromorpha, along with hengeli and somphongsi are now reclassified in a seperate genus, Trigonostigma. All highly desirable species.

They are great fish. Sadly, I've seen man made "improvements" like all black jobbies. What a waste of effort.

This was an interesting thread, because of the location it was asked! Since Badis are neither Cyprinids, nor Characins, nor Atherinids, here seems to be wrong. But what are they though? A bit of research shows that they could equally well be thought of as relatives of Gouramies, or Cichlids for...

>>> Bruce Boxleitner" lol. Who are they? Bruce Boxleitner played John Sheridan in the later series of Babylon 5.

3 UK stockists listed at Fish Finder, Abacus Aquatics Kent DA15 8DJ Aquatic Design Centre London W1W 6QG The WaterZoo Peterborough PE1 2PE ... of course, that is "accurate" as in when they last updated their stocklists, when they uploaded them, etc. There will be other places.

I'm not sure I am understanding your last post replying to me. Perhaps you could elaborate.

Breeding egg layers is not quite the same as livebearers. With the common livebearers, just add water is frequently enough. For females that have mated and produced fry, you often don't even need the male, the female can store sperm internally and produce several clutches of fry from it...

This is a kind of sideways step. I've not thought much about it. If you travel back in time, at the arrival point the mass of the universe has increased. From above, there are now 2 of you yesterday, whereas before there was only 1. The mass of the entire universe is now greater than it was by...

In your example, the people "today" have the memories they have of the statue being detroyed because it happened and the memory was stored yesterday. If you moved back in four dimensions preventing the statue from being destroyed, then the memories they have today, would not be of the statue...

I think A problem with time travel is where too? If you could travel back in time, even a short distance, say yesterday lunchtime, where would you be? Yesterday lunchtime, the planet was in a different place, the sun was also, the galaxy was too...

Insufficient info to comment really. What else is in the tank? How are they? Temperature? pH? Hardness? How long has the tank been up? P. rhomboocellatus is always a bit delicate when first introduced to a tank, it takes a while to settle.

>>> All Barbs need to be in groups of 6+. This is another common piece of advice I would put a question mark, or at least a qualifier, against. Whilst it is most definitely true in the case of most barbs seen in the trade, I suggest that in certain cases, it is not. My own, (40 years +)...

>>> claim that some barbs can be the way they are Hmm, improvement at least. As FM says above, of the hundreds of species called barbs, lets have you name a few others.

... yet you don't see people warning that tetras can be nippy...

Characins, (tetras), are far better equipped to nip or bite causing damage than barbs which do not have jawed teeth, yet one rarely sees mention of the /possibility/ of a Neon savaging it's tank mates. Barbs, on the other hand, are frequently dished the "nipper" label.

>>> Barbs can be quite nippy Never fails to amaze me when reading the board that "barbs are nippers". Whilst it is true that SOME barbs CAN be nippers when kept in SOME ways, branding a huge largely peaceful group of fish is just so wrong.

>>> not sure of technical name Hemigrammus erythrozonus, the Glowlight perhaps?

I have noticed the absence of many cyprinids from the UK stock lists, and those that are there featured many "mucked about" examples rather than natural. I always kept Barbs and Rasboras, classic fish shaped fish, but it seems that cichlids and cats are the "de jure" of todays shops. I had a...

pH should be below 7, in nature, the pH can get very low 5 or even lower at the start of the rainy season. The rain washes humic acid from the fallen vegetation into the, at that time, small streams/rivers. Later when the rivers fill, it is diluted and the pH slowly rises. Many characin species...

>>> more aggressive like the ST's and the Danios and Barbs The barbs are a very large group and the vast majority of the species are perfect community fish with no aggression at all.

... and Rasboras will not bother Corys either.

>>> none are true aquatic plants Sorry, but you are probably correct.

Another thing to consider is the pH of the water and particularly the hardness. An acidic pH and very low hardness are required. The eggs will not hatch in hard water.

... and new ones being discovered at regular intervals. Sadly, a few become extinct at regular intervals as well.

They'll be fine, don't do anything special for such a short excursion. Doing so invites all kinds of issues.

Many tetras are quite easy to breed... given the right conditions. I have bred numerous species - all in tanks. The reason fish farms export so many is simply economics, negligible production costs being important. <editited> spelling of negligible is not negligable

Probably not mature yet, when adult, the difference is quite pronounced. Obviously, trying to breed immature fish will not work.

Once mature, sexing is fairly easy. Males have a red nose, much more red in the fins and are generally brighter, females less so and tend to be deeper in the body. Males behaviour is also a little different, posturing, posing, squaring off to each other etc. Young fish are similar in appearance...

Harlequins are Rasboras from SE Asia, not tetras ;)

I was a software engineer in the embedded real-time market. Then I had a heart attack, leading to anoxic brain injury. Now I'm unemployed and unemployable.

Shoaling or schooling is a defense strategy. If the fish feel threatened, they school up, if the perceived threat is severe enough, different species will school together. In a stress free environment, many "schooling" species will do their own thing, in their own direction at their own pace.