Search found 9013 matches
- 10 Oct 2014, 20:28
- Forum: Speak Easy
- Topic: Just a hobby or a field of study?
- Replies: 28
- Views: 10444
Re: Just a hobby or a field of study?
Absolutely, but my concern is that the college education (I'm talking PhD here) trains you solely for working in research, and yet only 3.5% of PhD graduates get research jobs. That to me is a very worrying statistic. The transferable skills learnt during a PhD are often undervalued in other career...
- 10 Oct 2014, 17:47
- Forum: All Resolved Issues
- Topic: Unable to delete photos from "My Cats"
- Replies: 15
- Views: 5252
Re: Unable to delete photos from "My Cats"
LOL. Thanks Jools, for your graciousness.Jools wrote:Eric, Thanks for posting, I will have a look at this when I get home from catcon2014 although I really do think your pictures are not as bad as you think by any means!
- Eric
- 10 Oct 2014, 06:36
- Forum: Speak Easy
- Topic: Just a hobby or a field of study?
- Replies: 28
- Views: 10444
Re: Just a hobby or a field of study?
Sounds great, but one has to sacrifice an awful lot in academia: family, friends, relationships, even pets, and not just once, many many times over. And the worst thing is, that there's actually very little hope at the end of it all, of getting a job in what you were trained for 10 years to do. Thi...
- 10 Oct 2014, 01:21
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
Hi David, Thanks for the suggestions. I wouldn't even consider the idea of using a deep substrate bed for this purpose in a FW aquarium for many reasons, but mainly because it wastes valuable swimming space Very true - As I mentioned above, I set up an experimental tank, a standard 15 Gallon, with 4...
- 09 Oct 2014, 01:01
- Forum: Speak Easy
- Topic: Just a hobby or a field of study?
- Replies: 28
- Views: 10444
Re: Just a hobby or a field of study?
Hi Narelle, Parts of your story remind me of my start, although there are definitely also some differences: Like you, I consider myself a newbie to catfish keeping; I’ve been keeping catfish for only two years. And like you, I decided at a relatively young age that I wanted to find some career with ...
- 08 Oct 2014, 22:36
- Forum: All Resolved Issues
- Topic: Unable to delete photos from "My Cats"
- Replies: 15
- Views: 5252
Unable to delete photos from "My Cats"
I recently tried to remove a photo of one of my catfish (on the "My Cats" page) by using the "Tick to delete this image" checkbox. I was trying to remove the old photo without uploading a new photo because I don't yet have a better photo of my catfish. However the function didn't...
- 06 Oct 2014, 19:38
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
The plants do more than provide a little bit of oxygen, they provide enough to support aerobic nitrification Hi TwoTankAmin, Thank you for the articles; I'll take some time to digest them. As to my earlier point, I did not intend to minimize the magnitude of gas transport by the plants, or suggest ...
- 06 Oct 2014, 17:53
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
Hi Darrel,
I was able to get it successfully. Apparently my institution has access.
Thanks, Eric
P.S., I noticed that there's no thick gravel bed in those tanks of yours, but definitely well planted.
I was able to get it successfully. Apparently my institution has access.
Thanks, Eric
P.S., I noticed that there's no thick gravel bed in those tanks of yours, but definitely well planted.
- 06 Oct 2014, 14:26
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
you might consider a "Winogradsky column" < http://archive.bio.ed.ac.uk/jdeacon/microbes/winograd.htm >. I've just set up a new one. Yes, we've used Wingradsky columns before. They are really neat, too. I think that the aquarium setup appeals to me because of its practical application, ev...
- 06 Oct 2014, 05:07
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
Dang it - Do you ever spend a good long time... almost an hour, literally... crafting what you want to say next, and then your browser freezes and you lose it all?!? Oh well, all I can do is start over: Thank you all for your comments. A lot of you have responded, so I won't attempt to quote from in...
- 04 Oct 2014, 20:51
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
The LFS owner's advice to Bekateen that high O2 levels from "over filtration" cause algae is patently ridiculous. Shane, I will be honest and state that I may not have represented my LFS owner's position completely right. I mean that I might be putting words in his mouth on this point: He...
- 04 Oct 2014, 20:18
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Re: Using deep gravel and bacteria to control nitrogen
bekateen, you wrote that your local tap water may suffer from variations in quality from time to time. Rather than doing something to try to improve your tap water, is there any chance that you can collect rain water? A large rubbermaid garbage can placed under a gutter pipe can collect water quite...
- 03 Oct 2014, 21:36
- Forum: Tank Talk
- Topic: Using deep gravel and bacteria to control nitrogen
- Replies: 127
- Views: 101910
Using deep gravel and bacteria to control nitrogen
Hi All, Do any of you rely on a deep (4"/10cm or deeper) gravel bed and denitrifying bacteria to control nitrates in your aquaria? A LFS owner recently told me that this approach can have profound positive effects on water quality in aquaria. The idea appeals to me, if it works, because my muni...
- 03 Oct 2014, 16:58
- Forum: Tank Talk
- Topic: San Joaquin river delta, Bay Area California
- Replies: 5
- Views: 2130
Re: San Joaquin river delta, Bay Area California
Hi Soccerdad925,
I'm in Stockton, but alas, I don't get out fishing.
Eric
I'm in Stockton, but alas, I don't get out fishing.
Eric
- 02 Oct 2014, 21:09
- Forum: Taxonomy & Science News
- Topic: New Parachiloglanis
- Replies: 8
- Views: 2452
Re: New Parachiloglanis
I'm not used to encountering truncated downloads like that, so I didn't check after page 1. Major faux pas on my end -- Sorry about that.Suckermouth wrote:The free links on Zootaxa papers that are not open access include only the first page and the pages with references.
- 02 Oct 2014, 20:40
- Forum: Taxonomy & Science News
- Topic: New Parachiloglanis
- Replies: 8
- Views: 2452
Re: New Parachiloglanis
http://www.mapress.com/zootaxa/2014/f/z03869p312f.pdf
This should be a free download. Please let me know if it's not.
This should be a free download. Please let me know if it's not.
- 02 Oct 2014, 17:38
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: ID'ing young Scleromystax macropterus & Corydoras paleatus
- Replies: 3
- Views: 1442
Re: ID'ing young Scleromystax macropterus & Corydoras paleat
I didn't get back to the LFS until last night. Upon closer inspection, yep, the nose says it all, if a nose can talk: It's , not (sorry the photo is so bad - Nokia 900 phones have crummy cameras ). Thanks for the input.
- 01 Oct 2014, 20:02
- Forum: Taxonomy & Science News
- Topic: Commercial breeding / rearing of Corydoras aeneus
- Replies: 0
- Views: 1011
Commercial breeding / rearing of Corydoras aeneus
How to breed albino Corys, scaled up for commercial production (here's how they did it in India): Mahapatra, B.K. & Dutta, S. 2014. Breeding and Rearing of an Exotic Ornamental Catfish, Corydorus (sic) aeneus (Gill, 1858) in Kolkata, West Bengal and Its Economics. Proceedings of the Zoological S...
- 30 Sep 2014, 17:59
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: Can inbreeding affect size?
- Replies: 19
- Views: 5181
Re: Can inbreeding affect size?
I have a group of hybrid corys whose parents are albino aeneus and gold lasers. Unless the two species are very closely related, interspecific hybridization opens a whole new can of worms, when compared to intraspecific hybridization. Does anybody know the chromosomal make up of either aeneus or go...
- 25 Sep 2014, 18:32
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: ID'ing young Scleromystax macropterus & Corydoras paleatus
- Replies: 3
- Views: 1442
Re: ID'ing young Scleromystax macropterus & Corydoras paleat
I would have thought the snout shapes of the two would easily tell them apart. Doesn't Scleromystax have a longer snout with a flatter dorsal profile? Is it as straight forward as that? I'll be back at the LFS tonight, so I'll take a look. Are there any other features of clear distinction in juveni...
- 24 Sep 2014, 17:58
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: ID'ing young Scleromystax macropterus & Corydoras paleatus
- Replies: 3
- Views: 1442
ID'ing young Scleromystax macropterus & Corydoras paleatus
What are the definitive ways to tell apart a sub-adult high fin peppered cory Scleromystax macropterus and a sub-adult long-finned variety of peppered cory Corydoras paleatus ? I can see that the paleatus tend to be more grey/black whereas the macropterus tend to be more tan/brown, but in the photos...
- 24 Sep 2014, 00:58
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: Can inbreeding affect size?
- Replies: 19
- Views: 5181
Re: Can inbreeding affect size?
Here is an article ( Active Inbreeding in a Cichlid Fish and Its Adaptive Significance ) that finds some level of inbreeding to be a good thing for the fish in this case, with no measurable negative effects on growth rate. But there are plenty of other articles that show, not surprisingly, inbreedin...
- 23 Sep 2014, 21:40
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: Can inbreeding affect size?
- Replies: 19
- Views: 5181
Re: Can inbreeding affect size?
This being said - would it make sense with a limited population of a certain fish (i.e. chances of getting new wild stock for better blood lines are slim) to breed only the larger fry (ones that are more heterozygous)? To continue the captive population in the best way possible. Regardless of the i...
- 23 Sep 2014, 21:27
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: Can inbreeding affect size?
- Replies: 19
- Views: 5181
Re: Can inbreeding affect size?
In my limited experience with corys, banjo cats, and several cichlid species, I find that within a group of juveniles (all siblings hatched at about the same time), there will inevitably be one, or two, or maybe a few individuals, that accelerate ahead in growth, far ahead of all the other juvies. O...
- 22 Sep 2014, 06:36
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: About C numbers and how we can interact with them
- Replies: 4
- Views: 1962
Re: About C numbers and how we can interact with them
Thanks Rob.
Cheers, Eric
Cheers, Eric
- 22 Sep 2014, 03:18
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: About C numbers and how we can interact with them
- Replies: 4
- Views: 1962
Re: About C numbers and how we can interact with them
Hi Steveh28, C numbers were given out by the German magazine DATZ and Hans Evers. They don't handle this any longer, so Ian Fuller assigns CW numbers on his website corydorasworld.com. Thank you. I was completely unaware of the CW numbers. From what you are saying, is the C numbering system now clos...
- 22 Sep 2014, 01:40
- Forum: Taxonomy & Science News
- Topic: Stream fish fauna from the rio Machado basin, Brazil
- Replies: 0
- Views: 861
Stream fish fauna from the rio Machado basin, Brazil
This article doesn't specify any catfish in its abstract, but there are lots of cats listed in the species inventory. Lilian Casatti, María Angélica Pérez-Mayorga, Fernando Rogério Carvalho, Gabriel Lourenço Brejão, and Igor David da Costa. 2013. The stream fish fauna from the rio Machado basin, Ron...
- 21 Sep 2014, 23:56
- Forum: South American Catfishes (Callichthyidae - Corys et al)
- Topic: About C numbers and how we can interact with them
- Replies: 4
- Views: 1962
About C numbers and how we can interact with them
Hi All, I'm relatively new here, and so this question may have been asked before: Is there a resource we can access that describes the various C number corys, and which provides information about why a particular C number was created? I've tried to read up on the C numbers at several websites; I und...
- 21 Sep 2014, 22:59
- Forum: All Resolved Issues
- Topic: Can you provide a legend for forum symbols?
- Replies: 8
- Views: 3357
Re: Can you provide a legend for forum symbols?
Hi Jools, Once you click on "New Topic", the new topic page will show a set of icons that you can choose by clicking a radio button - they are just above where you title the thread. When I first read this, I was confused, because I was sure that I hadn't noticed any such radio buttons by t...
- 21 Sep 2014, 22:23
- Forum: All Resolved Issues
- Topic: Sorting and searching members by geographic location?
- Replies: 11
- Views: 5073
Re: Sorting and searching members by geographic location?
... would also require browsers to send data about location as text based location doesn't work. I could implement a country dropdown, but that's not much use for big countries. Because this is an international forum, it also means a global solution is required. Hi Jools, Even what you're describin...