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Left the update a bit late today, but you'll be glad to know that I did follow through with the filters! So, let's begin: Quite clearly seen better days. No surface agitation at all. Annoyingly I didn't get any pictures of the process, but somehow the sponge inside wasn't actually that bad...

Thanks for all the support and advice everyone! A significant volume of the water had evaporated as it's been so long, and it was both our hottest summer on record, and then I've had the heater on since late November (it stayed very mild late into the year as well). So I simply replaced the...

Hello all. It's been a while. Suffice to say, between personal health issues, other issues in my life and the general state of the world right now, I've not had a good six months. That has unfortunately led to me leaving my tanks in severe neglect, and I haven't done any water changes for...

Thought I'd update this thread, as today is Creation Day, exactly eight years since the start of this current tank ecosystem. So far there hasn't been a die-off yet, everyone's still doing relatively well. In the last couple of months my gupplers have begun showing their age though, many are...

Thought I'd update the thread. The few cories that have survived are doing well. They look like miniature versions of the adults now! They'll be ready to go in with the adults in a few more weeks. I usually put them in once they start to colour up. I've seen two together so far, I think that's...

What cories do you have? You'll find that a lot of the more common species, once mature and having bred once in your tank, will begin regularly spawning without much encouragement and rarely ever stop. They are generally hardy fish and once settled will want to start reproducing in an...

Update: I've managed to see two fry at the same time! There's at least two in there, which is twice as good as one if anything else.

Hello all :) As the warm half of the year has now come around in the UK, it's time to breed cories! I have bred cories several times before, and actually initiating the breeding is not a problem for me. Nor is caring for the fry once they're born, they're very beginner-proof and I've had cory...

Looks like epistylis. Epistylis is not a disease but is a genus of protozoans that feed on bacteria. During a bacterial bloom they can attach themselves to fish as they massively overproliferate and this causes the presentation. Epistylis is dangerous because it destroys the slime coat of the...

No, but here in SE England you would generally be able to keep them outside in that period. Water has a very high heat capacity so one warm day and the water will just never cool down much unless it managed to get abnormally cold at night.

Tropical fish can survive almost any May-October period in the temperate world.

I'm in SE England and I always turn my heaters off in the warm season, which is usually April-October. Our houses are built to keep heat in (which makes increasingly hotter summer days very unpleasant), so by the time the Sun is getting stronger in the sky and we have a warm spell, the house and...

You wouldn't want to keep multiple male mollies in a 10 gallon, nor would you want to keep just two of any livebearer. In reality all livebearers have wildly varying gestation periods. I find that guppies and endlers give birth considerably more often than the others, but all of them can take...

That's almost definitely a male. Unfortunately it is becoming increasingly common for sellers to sell the wrong sex in order to gatekeep breeding of more valuable species and to make you buy more fish in the hopes that you're sent the right sex next time, which you likely never will be. I have...

Honestly some not so good advice in here. They absolutely do not - All common livebearers prefer hard water. Livebearers are a social fish. Generally you want at least a small group of them to thrive. I would not try to keep just two livebearers, especially mollies. Realistically the only...

I'm about 95% confident in them being gupplings and not platlings. Within a week you should be able to tell for certain which one they are. Gupplings are more streamlined and have longer tails than platlings, who tend to be considerably boxier, much like the adult forms of both species. Unless...

I've had some guppies do this in the past, although they didn't die within 24 hours; more like they gradually became less and less active over the course of a few weeks before finally dying. Usually I just euthanised once it became clear that the fish was unwell because guppies have genetic AIDS...

Ok, so we can almost certainly rule out some sort of anoxia issue. Yes it could be the dead fish given that nitrites don't seem to be appearing, it depends how long they were left there for though. Perfect! They will at least be able to rule whether it was toxic i.e. nitrite poisoning or...

Well, long before that the Sun will become so luminous as to accelerate the carbonate-silicate cycle into a runaway ~600 million years from now, and that will over the next few hundred million years after gradually end all multicellular life. Then around a billion years from now the Earth's...

It's kind of sad that it's called "Neon Tetra Disease"; given that cardinals seem to be substantially more resistant than other tetras, it's quite likely that they are the natural hosts of the species/genus/family that commonly ravages home aquaria, and they have transmitted it to neons et al...