Tag-arkiv: maller

L-181 maller

Jeg har nu i nogle måneder haft fem L181 maller, det er pt. mine yndlingsmaller. De er meget flotte; men desværre også sky.

Når jeg nærmer mig mine akvarier stikker de af og gemmer sig. Hurtigt. Derfor er det heller ikke lykkedes mig, at tage et vellignende fotografi af mallerne.

Mine L-181 er gode maller. Gode til det, som man har maller til. De bevæger sig rundt i på alle fladerne i akvariet. Dog kun meget sjældent i glasset ud imod stuen; men det er jo også der, hvor jeg opholder mig. Hvis jeg er tilpas langt væk, så bliver det glas dog også renset.

Mallerne er meget fredelige over for andre dyre i akvarierne. Jeg har ikke set dem været efter hverken småfisk, rejer eller andre maller – af samme slags eller andre slags.

Unger dør i filter – løsning

Projekt red ungerne.

Mine fiskeunger dør i mit Eheim Pickup-filter, for de kære små unger kan svømme ind i filtret; men kan ikke finde ud igen. Der er i hvert fald to døde gul lyrehale spenops (molly) samt tre Ancistrus spec. unger. Derfor en redningskation for mit fiskeyngel.

Indvendigt Eheim filter medstroempe
Foto: Indvendigt Eheim filter medstroempe

Det er sådan set nemt nok. Tag Eheim Pickup-filter ud af akvarium (rens når du alligevel er i gang), klip et stykke nylonstrømpe af som du efterfølgende sætter uden på dit filter. Dette hindre, at fiskene svømmer ind i filtret; men nylonstrømperne er så tynde, at vandet kan sive igennem og fortsat blive renset.

Tredje gang æglægning af maller

I dag lagde min store hunmalle så for tredje gang æg, som hannen straks befrugtede og vogter over.

Det er vist kun to dage siden, at jeg flyttede ham og mallehulen retur til mit 250 liter akvarium efter, at han har lægget med æg og passet på kuld nummer to.

Jeg har dog ikke set så mange unger fra andet kuld, som jeg ellers havde forventet blev større end første kuld, for første kuld opdagede jeg først, da han havde skubbet 7-9 æg ud.

Måske de små nye unger blot gemmer sig endnu bedre.

Panda pansermalle (Corydoras panda)

Jeg har tilført mit 250 liter akvarium otte eksemplarer af Panda pansermalle (Corydoras panda). De er så søde når de svømmer sammen. Det er udpræget en flokfisk.

This Corydoras is actually a recent addition, in aquarium terms anyway, to the catfish hobby and was collected by Foersch and Hanrieder in a mountain brook at the side of the Rio Lullapichis (Ucayali/Peru) in 1969. It was not until 1971 that it was named in honour of the Giant Panda of China ( Ailuropoda melanoleuca), which its markings resemble, by Nijssen & Isbrücker. The water conditions in this black water river was a pH of 7.7 and 3.1dGH. The temperature of the water ranged from 23.5°C (74.3°F) during the day and dropping down to 22.5°C (72°F) in the evening.

The panda cory created a great disturbance in the late 70’s early 80’s when it started to get a foothold in the hobby due to a breeding project carried out in Germany accumulating with this species arriving in the U.K. around about 1982. My abiding memory was of seeing this Corydoras at the British Aquarist Festival in Manchester of that year, with them priced on a stall at £40 each, needless to say I did not purchase any, I only admired them from afar!. Of course nowadays this is a relatively inexpensive Corydoras to purchase as it has been bred often and proven to be hardy and not too hard to breed in the aquarium. There is a clue in the collection data of this species in that it likes the water to be on the cooler side as it was first collected in the foothills of the Andes Mountains and as such the lower temperatures suits this Corydoras ideally, but in saying that the species in your tank has probably been far removed from the wild generation and would be used to temperatures in the high seventies, but I would be inclined to stick to the middle range of between 21°C-24°C (69°F-75°F.)

A good pH range would be around the neutral mark (7) as they do not like the water to be too acidic. This is a small inofensive little Cory who do better in a shoal so buy at least six off. It would also be advisable not to keep rombustous species in with them such as Tiger Barbs and other fin nipping species as they would worry them to death with their constant harasment and would also deprive them of food as they would be inclined not to venture out for feeding, large Cichlids would also be a bad choice. A good community tank for them would house inofensive tetras such as Neon’s and other smaller characins, and if you would like other catfish any of the Ancistrus types would make good partners and of course other Corydoras or Aspidoras species. If you would like to breed Corydoras panda a species tank is the only way to go with a tank size of 18″x 12″ x 12″ being ideal for a group of six. Characteristics : Short and stocky body shape. Colour: Body sandy coloured with black spot/patch on caudal peduncle and dorsal. Black band bridges head and covers both eyes. Gold shimmer to gill covers. Rest of fins clear.

Compatibility: This is akin to most of this genus, very peaceful, and would be best housed with small to medium tankmates such as Tetras, Rasboras and Danios or in a species tank for breeding purposes.

Breeding : Not too difficult, will breed as per any Corydoras species giving a good diet and water conditions, and water changes of a lower temperature to induce spawning. Two males to one female or one pair. Setup could be a 18″x12″x12″ tank with sand or bare bottom with Java moss, Java fern and a sponge filter, adding if you like a power filter for extra aeration and circulation of the water all leading to a hopefully successful spawning. See the breeding section of the ScotCat articles page to read many successful spawning reports of the Corydoras genera.

Feeding: Like all Corydoras they like a good quality flake food which will have all the goodness and vitamins that they need and also tablet food. For a breeding project they relish frozen bloodworm, grindal and whiteworm.