Thursday, 26 February 2015

New critters; Caridinas and crayfish!

From Garnelen Guemmer I got a few new things last week. Jens from the shop was at the fair in Vejle and I pre-ordered some shrimps to pick up.

I got some new ones for my Caridina cantonensis "Tangerine Tiger"-tank to add some "new blood", but i also got a bag of (Para)caridina hainanensis "Super Princess Bee". The ID might not be correct as it seems there is some confusion about this species, but from what I understand from Andreas Karge, they are currently Cardina hainanensis scientifically, although they seem to be Paracaridina at a closer look.

In any case very pretty animals!

Contrary to many of my other shrimps, these seem to prefer to sit on leaves instead of the HMF-filter mat or the sand substrate.

I also bought a bag of Caridina trifasciata. After reading the Breeders'n'keepers "China Wild"-edition I wanted to get this species, but it is not possible to locate any here in Denmark. Between the animals there are both light and dark specimens and in the future I want to purchase some from German breeders to see if I can get more diversity.

Light and dark.

Something else I bought was some Cambarellus patzcuarensis "Orange". I've never kept crayfish before, so I thought I'd start with something "easy" and well known. I think I got some pretty nice animals!

On a side-note, I have seen a lot of shrimplet from these Galaxy will be interesting to see what they grow up to be!

Monday, 23 February 2015

Random fish and new purchases!

Last weekend I spent a few hours looking, buying and giving a talk on small livebearers at Vejle Akvariemesse, one of the biggest aquaristic fairs/events in Denmark during the year. This year 1300+ people visited! Of course I forgot to tage any pictures!

I came home with quite a few new fishes:

(Para)caridina hainanensis "Super Princess Bee"
Caridina trifasciata
Caridina cantonensis "Golden Tiger"
Trigonostigma somphongsi
Danio aesculapii
Oryzias sarasinorum
Quintana atrizona "Guanimar. Cuba 1987"
Corydoras nijssenni
Phalloceros caudimaculatus "Centurión, Cerro Largo. Uruguay 2010, Morten Ask"
Phalloceros caudimaculatus "Aquarium strain"
Poecilia reticulata "Carupano, Venezuela 2008, Phillip Voisin"
Poecilia wingei "Campoma 2011 No. 25, Phillip Voisin" to add to my existing group.

I have also done a few shots of "old" fish. The new ones are awaiting time to do pictures!
I also need to update my species list and phenoype lists...

Shimpei Taniguchis "Orange Body", derived from Laguna la Malaguena 2004-fish.

Adrian Hernandez' "Mint Top Sword"...

A favouorite of mine; Poecilia sp. "Orange Line", collected in Rio Morichal, El Salto, Venezuela 1996 by Karl Mayerhofer and Norbert Svardahl. 
Really tricky to get good photos with these fast and surface-oriented fish!

Friday, 20 February 2015

More San José!

Just a short update before Vejle Aquarium Fair 2015 tomorrow. I am looking forward to do a quick round to say hello to some people, pick up (too many!) fish and shrimps and deliver some too!


One of my favourite tanks to look into is the San José-tank. Always something new to spot. The 7 pairs I recieved from Phillip Voisin last year have made it beyond 100 fish with new male patterns appearing constantly.
I hope to recieve more fish this year the expand the population further.

Previous phenotyopes can be seen here.
These shots of later types show the diversity in colour and body shape that makes this population so unique and exciting...

 Really great caudal pattern!

Completely different bodyshape...

Close comparison.

Yet another new type...

...and one more, with nice sword.

Saturday, 14 February 2015

Corydoras boesemani and Corydoras gryphus!

After over a year without breeding any Corydoras, I have found time to run two breeding tanks for them again.
I bred Corydoras as first priority for 10 years, but changing job and other things put a stop to it for some time. I parted with a lot of species wich are for the most part maintained and bred on by other Danish Corydoras enthusiasts. My remaining stock have been keeping the livebearers and shrimp company but haven't spawned due to the parameters of my tapwater.

The chosen species to have a go at were Corydoras boesemani and Corydoras gryphus, more commonly know as C7.

Corydoras boesemani has not been commonly found in the hobby until Ingo Seidel and Hans Georg Evers brough some back from Surinam a few years ago. Since then they have become more common between dedicated Corydoras hobbyists. They have proven not too difficult to breed and are actually doing fine left alone with eggs and fry remaining in the adults tank.

It is a very nice sand-coloured species with black markings. Some males can even have a slightly extended dorsal.

Corydoras boesemani male.

Peek-a-boo...Corydoras boesemani is in my experience a shy species.

I use frozen bloodworms, newly hatched Artemia and various sticks, granules and pellets for conditioning my fish. Especially Earthworm-sticks are popular. Waterchanges are done regularly (I try to do a 50-60% change every week) with temperate rainwater. Maybe slightly cooler than the tank (23C. approx.) but not really cold like needed for some species. Eggs are relatively large and placed all over the tank.

Fertile eggs from C. boesemani.

Breeding tank. Notice the eggs on both left and right side of the front glass.

My Corydoras breeding tanks are often furnished with a thin layer of sand and some leaves (Beech, Oak) and some bogwood. Sometimes Javafern are attatched to the wood. Mostly I have a clump of moss in there as well.

The other species, Corydoras gryphus, was not scientifically described until recently and known under the codes C7 and CW24 for many years.. The species come from Southern Brazil and Argentina. My fish originates from Hans Georg Evers and are (as I remember) of Argentinan origin. A small fish from the paleatus-complex with males showing high dorsals and sometimes having small squabbles. Very entertaining with noone harmed.

Males can have different colouration with actual albinos showing in broods from time to time.

Normal coloured male...

Very pale coloured male...

Very dark male...


Waterchanges are done with quite cold rainwater (12-14C) and again 50-60% waterchanges. Eggs are placed everywhere, but a most are put on the glass behind mops or plants. 

Typical egg-placement for C. gryphus.

For this species, I remove the eggs and hatch them in a container with an airstone. I never use Methylene blue or Alder cones. Just a couple of ramshorn snails for keeping the eggs and the container rid of bactieria film etc.

For first food I use Bananaworms and newly hatched Artemia. I never use decapsulated Artemia eggs or powdered foods for the fry. It is messy completely destroy the water and kill the fry if you're not looking after them constantly and I can't do that. Only when moved to a real tank I use pellets, powders etc.

Fry with belly full of Artemia. Approximately 1 week old.

When I start feeding the fry I transfer them from the hatching container to one of the breederboxes with waterchange via an airlift. After a couple of weeks in there, the fry are moved to real tank.

Newly hatched C. gryphus. Scale is centimeters.

2-3 weeks old.

At 8-10 weeks they resemble small copies of the adults.

Monday, 9 February 2015

Galaxy tiger update plus Red Hat and Green Jade Neocaridina!

 In december 2013 I bought 15 Caridina sp. Galaxy Tiger from a German webshop. What arrived was apparently a mix of at least 2 species; the Galaxy Tigers and some other similar sized shrimp with a backstripe.
So far I only have a couple of Galaxys left. Perhaps my water parameters are wrong for these and rainwater would have been a better choice, but you never really know until you try! No berried ones spotted so far.
The other type has been berried a few times. I haven't seen any young shrimp yet, but they could well be in there. There is a big pile of leaves in the tank and also the filter-mat to hide in.

These are the types "in the mix" now:

Caridina sp. Galaxy Tiger...

"The other shrimp" with eggs...

...and what are these?

In my Neocaridina davidi "Blue Carbon Rili"-tank a lot of funny things are going on. Of course there are a lot of Blue Carbons, but also Carbon Rili, light blue shrimp of various intensities and a few completely black ones have come out from there...and some with a "Red Hat". Perhaps not the most exotic pattern, but still very different from all other types from that tank. So far around 10 have been transferred to another tank just to see how they develop.

Red Hat Neos...

Regarding my other shrimp, a lot of Green Jade shrimplets have been spotted. It will be exciting to see how they develop. So far they look green(ish).
The adults are green, although not the same green colour as shown on the webshop they were bought from.
All but one were females. All the females had a very prominent yellow backstripe, the male were more anonymous.

A few shots taken with my phone in the tank they share with some Poecilia wingei. The youngsters look like they will be green.

And then again; there's a few orange ones as well! They are taken out and put into another tank.

Shrimplets have also been spotted in my N. davidi "Yellow Fire Neon"-tank and in the tanks with red and deep blue Caridina mariae. The C. cantonensis "Tangerine Tiger" continues to produce shrimplets too.

Thursday, 5 February 2015

Poecilia wingei - Campoma No. 45 variations

One of my favourite phenotypes from Phillip Voisin & Co.'s Campoma-collections in 2011-2012 is No. 45. A nice metallic green fish with colours in the dorsal. I have a large population in a single-type tank and have observed a few developments in there...

My original fish looked very alike:

Now, after some time a few variations have popped up:

Bodycolour variations - some are more blueish than green...

 Like my originals...

More blue...

Mesh-pattern in the caudal, like I have seen in some Blue Stars as well...

Longer swords...

It is really rewarding and fun to see how a strain develops if left alone! Already there is basis for selection of future new strains if desired. However, the plan for these fish is to combine them with one or two other phenotypes to free some tanks for other purposes. This approach will probably be used for many of my fish over the next year, especially the Campomas. It is easy to make a seperate strain again, as the Campoma females seem not to carry much colour and everything works more or less like copy-paste from the chosen male.