Search found 2919 matches

by Bas Pels
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.
by Bas Pels
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 :)
by Bas Pels
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 ...
by Bas Pels
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
by Bas Pels
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.
by Bas Pels
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
by Bas Pels
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
by Bas Pels
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
by Bas Pels
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.
by Bas Pels
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.
by Bas Pels
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 ...
by Bas Pels
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?
by Bas Pels
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 ...
by Bas Pels
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
by Bas Pels
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
by Bas Pels
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
by Bas Pels
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 ...
by Bas Pels
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.
by Bas Pels
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 ...
by Bas Pels
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
by Bas Pels
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
by Bas Pels
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 ...
by Bas Pels
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 ...
by Bas Pels
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?
by Bas Pels
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.
by Bas Pels
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 ...
by Bas Pels
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
by Bas Pels
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 ...
by Bas Pels
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?
by Bas Pels
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 ...

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