Search found 2919 matches
- 03 Mar 2025, 07:36
- Forum: Suggestions, Feature Requests and Enhancements
- Topic: Endemism note in CateLog profile?
- Replies: 4
- Views: 6431
Re: Endemism note in CateLog profile?
I think you make a good point - if I look at a map of India, I can see points on a distribution map, but that point could be one lake, or a 100 km square area - and in the altte case, the species might not be properly researched and can be found elsewhere.
- 15 Feb 2025, 08:28
- Forum: Speak Easy
- Topic: A new view of genetic inheritance
- Replies: 4
- Views: 13089
Re: A new view of genetic inheritance
Orange is the national color of the Netherlands 

- 13 Jan 2025, 07:57
- Forum: Taxonomy & Science News
- Topic: Captive breeding, embryonic development, and conservation of Horabagrus nigricollaris
- Replies: 4
- Views: 22372
Re: Captive breeding, embryonic development, and conservation of Horabagrus nigricollaris
Producing 1500 fish from most likely 5 pairs of parents.
This does seam to be a good idea - BUT. But I wonder how much influence this has on the genetic diversity of the wild population.
As the population has a small area, and is endangerd, this population was not large. Say a thousand breeding ...
This does seam to be a good idea - BUT. But I wonder how much influence this has on the genetic diversity of the wild population.
As the population has a small area, and is endangerd, this population was not large. Say a thousand breeding ...
- 29 Dec 2024, 08:19
- Forum: Speak Easy
- Topic: Help with German to English Translation of Catfish Paper
- Replies: 3
- Views: 22157
Re: Help with German to English Translation of Catfish Paper
While not fluent in both - I'm Dutch, not German - I think I could help you with the correction of the Google translation. Let Google do the work and then correct the errors is - by for - the easiest way to translate such a relatively short piece.
If you are interested, pm me for my e mail address
If you are interested, pm me for my e mail address
- 13 Nov 2024, 07:37
- Forum: Taxonomy & Science News
- Topic: "First record of captive breeding of L333" (Maybe a more specific title is in order?)
- Replies: 5
- Views: 1778
Re: "First record of captive breeding of L333" (Maybe a more specific title is in order?)
For many scientists only scientific publications count. This is an example of this narrow view.
- 03 Oct 2024, 07:31
- Forum: Taxonomy & Science News
- Topic: Use of submerged trunks by stream fishes in the Lower Negro River, Amazon
- Replies: 1
- Views: 1638
Re: Use of submerged trunks by stream fishes in the Lower Negro River, Amazon
Obviously, there is a good reason they are called woodcats.
Many (cat)fish prefer stone hidingplaces, these wood
Many (cat)fish prefer stone hidingplaces, these wood
- 02 Oct 2024, 07:31
- Forum: What is my catfish?
- Topic: One line Pim
- Replies: 5
- Views: 13134
Re: One line Pim
Looks a lot like the Rhamdia I once had. Those grew to 40 cm - that's 16 inches. But Rhamdia species look a lot like each other, and not all Rhamdia grow to that size
- 23 Sep 2024, 07:33
- Forum: Tank Talk
- Topic: Fish Room Build
- Replies: 9
- Views: 23478
Re: Fish Room Build
You wrote "and maybe some furniture"
That was the biggest mistake in my fishroom, no furniture. Thus no place to relax and enjoy the fishes.
Do make room for at least 1 comfortable chair
That was the biggest mistake in my fishroom, no furniture. Thus no place to relax and enjoy the fishes.
Do make room for at least 1 comfortable chair
- 17 Sep 2024, 07:47
- Forum: Suggestions, Feature Requests and Enhancements
- Topic: Aquarium Basics or Advanced Information
- Replies: 3
- Views: 18994
Re: Aquarium Basics or Advanced Information
The thing is - while the fish don't care where they are, the needs are the same, it is hard to come up with help without naming products - products which are for sale in America but not in Europe, or vice versa.
Therefore the helpee might not be helped by very solid advice.
Therefore the helpee might not be helped by very solid advice.
- 09 Sep 2024, 07:32
- Forum: What is my catfish?
- Topic: Compatibility
- Replies: 7
- Views: 4742
Re: Compatibility
The problem is, Poecilia (black molly) is tolerant for salt, but they do need time to adapt. Therefore, remouving the salt might result in dead Poecilia - which may not be eaten.
- 07 Sep 2024, 08:31
- Forum: What is my catfish?
- Topic: Compatibility
- Replies: 7
- Views: 4742
Re: Compatibility
Catfish are primarily sweet water fish, only the Aridae live in sea/brackish water. But these grow far too large. Further yoou will not want a catfish with any predatory inclination.
Any fish you would add to this tank will a) be a risk for the fry and b) by polluting the water reduce the crop you ...
Any fish you would add to this tank will a) be a risk for the fry and b) by polluting the water reduce the crop you ...
- 08 Aug 2024, 07:27
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: Giant Gulper Cat
- Replies: 6
- Views: 15588
Re: Giant Gulper Cat
But - those other parts are also digestive. That is, fish don't adsorb vitamins from the water they swim in, right?
- 19 Jul 2024, 07:43
- Forum: African Catfishes
- Topic: Featherfin & Petricola temperature?
- Replies: 6
- Views: 14885
Re: Featherfin & Petricola temperature?
They both come from the same water. Lake Tanganyica, so yes it should be the same. I myself don't keep fishes from that lake, so I cannot tell you.
However, keeping Lake Tanganyica fishes together with tetras from rivers wille not be a good idea - the tetrs will prefer softer water.
I would ...
However, keeping Lake Tanganyica fishes together with tetras from rivers wille not be a good idea - the tetrs will prefer softer water.
I would ...
- 03 Jul 2024, 07:30
- Forum: South American Catfishes (Everything else)
- Topic: Raphael's are very fat?
- Replies: 3
- Views: 13299
Re: Raphael's are very fat?
My Platydoras did come out when I fed the other fishes, always during the day. They ate anything I fed.
I always thought a happy, healthy Platydoras is fat.
I've kept them for 27 years or so, but one day an illness killed both of them, together with two Pterogoblichthys gibbiceps of 23 years old
I always thought a happy, healthy Platydoras is fat.
I've kept them for 27 years or so, but one day an illness killed both of them, together with two Pterogoblichthys gibbiceps of 23 years old
- 26 Jun 2024, 08:09
- Forum: Taxonomy & Science News
- Topic: Fossil loricariid in Africa
- Replies: 9
- Views: 4793
Re: Fossil loricariid in Africa
Can anyone explain how A saharensis can be "not [...] even a teleost" but further "A. saharaensis still stands as the earliest known occurrence of an armoured catfish"
The group Teleostei is of a higher level then catfish, and thus all catfish are teleosts
The group Teleostei is of a higher level then catfish, and thus all catfish are teleosts
- 11 May 2024, 08:28
- Forum: Taxonomy & Science News
- Topic: Fossil catfish from Central India
- Replies: 1
- Views: 1726
Re: Fossil catfish from Central India
I once read - don't know when or where - that the cichlids from India, and Madagascar are more closely related to south American cichlids than African ones. I thought that odd, but this article sais more or less the same for two other clades.
There's a lot we don't know yet
There's a lot we don't know yet
- 09 May 2024, 07:36
- Forum: Taxonomy & Science News
- Topic: Long term high temperatures harm Clarias fuscus
- Replies: 1
- Views: 1814
Re: Long term high temperatures harm Clarias fuscus
The sudie studied stress coming from 8 degrees (centigrade) above normal. That is a lot of stress, and one wonders whether the expected heating will cause similar stress.
Still, knowing heat stress causes a certain kind of damage - that is, not an other - will enable others finding evidence of heat ...
Still, knowing heat stress causes a certain kind of damage - that is, not an other - will enable others finding evidence of heat ...
- 26 Apr 2024, 07:55
- Forum: What is my catfish?
- Topic: ID please? By catch with glass catfish
- Replies: 8
- Views: 3846
Re: ID please? By catch with glass catfish
mix ups do happen, and certainly secretive species are vulnerable for this.
A wholeseller does not waste much money on lights and therefore it is easy to think a tank is empty while it is not.
A wholeseller does not waste much money on lights and therefore it is easy to think a tank is empty while it is not.
- 31 Mar 2024, 08:23
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: Giant Gulper Cat
- Replies: 6
- Views: 15588
Re: Giant Gulper Cat
Actually, you better give them whole fish, that contains more than just the proteins the filets contains.
Especially the gut of the fish is very important, as there you will find the vitamins the victim ate before, vitamins which normaly are not fouond in meat.
But also the skeleton - the gulper ...
Especially the gut of the fish is very important, as there you will find the vitamins the victim ate before, vitamins which normaly are not fouond in meat.
But also the skeleton - the gulper ...
- 12 Mar 2024, 08:01
- Forum: Taxonomy & Science News
- Topic: Pterygoplichthys loose in the Scotland
- Replies: 3
- Views: 2845
Re: Pterygoplichthys loose in the Scotland
How couold they survive the winters? Finding a pleco in a lake in September does not tell me much, finding it in March would be a much larger problem
- 02 Mar 2024, 08:32
- Forum: Taxonomy & Science News
- Topic: Mixing albino corys and pigmented corys influences their movement behaviors
- Replies: 5
- Views: 4060
Re: Mixing albino corys and pigmented corys influences their movement behaviors
That could very well explain the albino behaviour.
But in that case, the whole study does not fit as an attempt to investigate the well being of albinos
But in that case, the whole study does not fit as an attempt to investigate the well being of albinos
- 29 Feb 2024, 07:58
- Forum: South American Catfishes (Everything else)
- Topic: Spotted/Striped Raphael Questions!
- Replies: 8
- Views: 18166
Re: Spotted/Striped Raphael Questions!
It is a long while, between 1997 and 1999, but I had 3 Platydoras combined with a lot of platyfish, all males. One day all the platys were gone. Eaten. 30 or more
Platydoras can eat fish, but it can take a while before the realize it is possible. As they like to eat too much, the whole shoal can ...
Platydoras can eat fish, but it can take a while before the realize it is possible. As they like to eat too much, the whole shoal can ...
- 27 Feb 2024, 07:50
- Forum: Taxonomy & Science News
- Topic: Mixing albino corys and pigmented corys influences their movement behaviors
- Replies: 5
- Views: 4060
Re: Mixing albino corys and pigmented corys influences their movement behaviors
I think this is a very interesting, and important question, but looking at the results in the article, I get the idea the albinos are more active, the have less fear.
Although that would reduce their lomnglivity in the wild - less fear means earlier cought by a predator, it also implies the well ...
Although that would reduce their lomnglivity in the wild - less fear means earlier cought by a predator, it also implies the well ...
- 17 Feb 2024, 07:40
- Forum: South American Catfishes (Everything else)
- Topic: Temperate cool water Catfish
- Replies: 3
- Views: 13923
Re: Temperate cool water Catfish
I wonder whether the Megalechis thoracata would like this water. For the others it is OK.
Did you know Scleromystax barbatus likes current?
Did you know Scleromystax barbatus likes current?
- 23 Jan 2024, 13:04
- Forum: South American Catfishes (Loricariidae - Plecos et al)
- Topic: Driftwood from Alabama River
- Replies: 9
- Views: 5321
Re: Driftwood from Alabama River
That would be a good incicator, but I would also look the wood pieces over after a few weeks. For dark, rotten pieces. However, as the wood is intended to be eaten, your fish will love these rotten pieces. After all, they live from the rotting bacteria.
- 22 Jan 2024, 07:42
- Forum: Taxonomy & Science News
- Topic: Augmenting commercial feed with live food enhances survival and grown of juvenile Trachelyopterus galeatus
- Replies: 3
- Views: 2079
Re: Augmenting commercial feed with live food enhances survival and grown of juvenile Trachelyopterus galeatus
With regard to the ad libitum feeding - the commercial food must be dried, and that makes this kind of feeding hard to imagine.
Mice can be supplied with pellets for a fortnight in one feeding without any harm, fish cannot. The pellet will dissolve, and spoil. Therefore I am afraid this ad ...
Mice can be supplied with pellets for a fortnight in one feeding without any harm, fish cannot. The pellet will dissolve, and spoil. Therefore I am afraid this ad ...
- 28 Nov 2023, 07:52
- Forum: Asian Catfishes
- Topic: About Cephalocassis borneensis
- Replies: 7
- Views: 23073
Re: About Cephalocassis borneensis
A rare opportunity to keep a fresh water Arid.
And if they look a bit similar to the well known species, they mus be beautiful. I'm a bit anvious
And if they look a bit similar to the well known species, they mus be beautiful. I'm a bit anvious
- 15 Nov 2023, 07:57
- Forum: Tank Talk
- Topic: Potassium permanganate and South Am. Species
- Replies: 4
- Views: 22068
Re: Potassium permanganate and South Am. Species
PP als Victor named the stuff, is a fierce oxydator. That is, it will cause certain harm to tissue, and this harm is intended to kill parasites and deseases, while the fish will survive this.
Still, all fish are especially vulnerable in their gills. And in case one would use PP - please provide the ...
Still, all fish are especially vulnerable in their gills. And in case one would use PP - please provide the ...
- 27 Oct 2023, 07:50
- Forum: Taxonomy & Science News
- Topic: Host specialization in parasitic cuckoo catfish
- Replies: 2
- Views: 5602
Re: Host specialization in parasitic cuckoo catfish
Would it be correct to assume from this lack of host specialism that this S multipunctatus is a young brood parasite? Perhaps too young yet to spezialize - that is, to divide into more species with each their own host?
- 07 Oct 2023, 08:05
- Forum: Tank Talk
- Topic: Tank age and leaks
- Replies: 16
- Views: 32851
Re: Tank age and leaks
Assuming the tanks are glued together with siliicone glue, please realize this was invented in 1970 or so, and the glue has seen a lot of improvements. The current glue lasts longer than the privious ones
However, apart from old age, I wonder whether vibrations also hurt these tanks. I have repaire ...
However, apart from old age, I wonder whether vibrations also hurt these tanks. I have repaire ...