Sperata aor agression

[arapaimag]

I'd concur. My experience was limited to a small one too (under a foot). Necro's is still young too - it was ~1' around the last time he posted about it in the thread I linked above. Necro's has been off the radar for a while. Comes out for a week or two and disappears for months.

Out of your 100 tanks , which tank is yours in, Michael, and what are its tank mates?

Wow, really slowed down, from 1' to 2' in 2.5 years. Necro's grew from 5" to about a foot in ~6 months IIRC.

Sorry for this long winded reply.

I eventually returned it to the 56kl. I had hoped to be able to add it to the 196kl. When we emptied the 56kl I moved it to a 1814 kl and a 850 kl over the summer /13.
When I added my Wallago attu (63.5 cm) to the 196 kl in October 2012 it was chased by my largest Phractocephalus hemioliopterus (est. 117cm).

I have not seen it since. However it might be alive. I often go a year and as much as 3 without seeing my oldest Hemibagrus wyckii and she is bigger at 70 cm.

So I was afraid that the Sperata Aor might be attacked and put it into the 37,800 kl section of the 56 kl.


The 56,700 litre tank (15,000 gallon) has been sectioned off with a 1cm/1cm plastic mesh to make 3 separate compartments.

The first is 14,000 litres and house the australian lungfish and a few others listed.
The second is 36,700 litres and houses the majority of the fish
The third is 6,000 litres and houses the aba aba


The lines represent: year obtained/ quantity of species/ genus/ species/ order/ family/ common name


Section A approx 14,000 litres

1990 1 Hemisynodontis membranacea Siluriformes Mochokidae mustache synodontis
2010 1 Hydrocynus Sp. (sold as goliath but not) Characiformes Alestiidae tiger fish
2011 8 Mylossoma aureum? Characiformes Characidae mylossoma
2006 1 Neoceratodus forsteri Ceratodontiformes Ceratodontidae australian lungfish
2008 1 Potamotrygon reticulated Myliobatiformes Potamotrygonidae reticulated stingray
2008 1 Loshiosilurus alexandria Siluuriformes Pseudopimelodidae Pacman cat

Section B approx 36,700 litres

2007 1 Amphilophus urophthalmus Perciformes Cichlidae orange tiger
2007 2 Astronotus ocellatus Perciformes Cichlidae oscars albino
2007 1 Astronotus ocellatus Perciformes Cichlidae oscars tiger
2001 1 Atractosteus tristoechus Lepisosteiformes Lepisosteidae cuban gar
2009 4 Barbonymus (Barboides, Barbus) schwanenfeldii Cypriniformes Cyprinidae tin foil barbs
2008 2 Barbonymus (Barboides, Barbus) schwanenfeldii Cypriniformes Cyprinidae tin foil barbs
2007 1 Boulengerochromis microlepis Perciformes Cichlidae tanganyika giant cichlid
2013 2 Boulengerochromis microlepis Perciformes Cichlidae tanganyika giant cichlid
2012 1 Calophysus macropterus Siluriformes Pimelodidae giant pimidilodus, vulture catfish (The larger one bought in 2000 was moved to my 196,560 litre tank)
2012 1 Cichla ? Characiformes Cynodontidae peacock bass
2007 1 Hemibagrus wyckii Siluriformes Bagridae crystal eyed cat
2009 3 Heros Sp. rotkeil Perciformes Cichlidae severum red shoulder
2012 4 Heros Sp. rotkeil Perciformes Cichlidae severum red shoulder
2010 1 Hypostomus plecostomus Siluriformes Loricariidae pleco
1996 8 Hypostomus plecostomus Siluriformes Loricariidae pleco
2011 6 Hypsibarbus wetmorei Cypriniformes Cyprinidae lemon finned barbs/diamond shark
2001 2 Lepisosteus oculatus Lepisosteiformes Lepisosteidae florida spotted gar
1999 1 Leporinus affinis Characiformes Anostomidae banded Leporinus faciatus
1999 1 Leporinus agassizi Characiformes Anostomidae leporinus
2009 1 Leporinus arcus Characiformes Anostomidae lipstick leporinus (arcus)
1994 1 Leporinus fasciatus Characiformes Anostomidae banded Leporinus faciatus
1996 1 Leporinus fasciatus Characiformes Anostomidae banded Leporinus faciatus
1999 2 Leporinus fasciatus Characiformes Anostomidae banded Leporinus faciatus
2000 2 Leporinus friderici Characiformes Anostomidae Leporinus friderici

2009 2 Myleus micans Characiformes Serrasalmidae giant redfin silver dollar
2009 3 Myleus rhomboidalis Characiformes Serrasalmidae yellow hooks
2009 1 Myleus schomburgki narrow bar Characiformes Serrasalmidae schomburgki narrow bar
1997 5 Myloplus(Myleus) rubripinnis Characiformes Serrasalmidae red hook
1996 1 Myloplus(Myleus) rubripinnis Characiformes Serrasalmidae red hook
2010 1 Nandopsis haitiensis big male Perciformes Cichlidae haiti I bred this one and he measured over 42cm sept 2013. But was killed in Nov/13
2012 1 Neolissochella stracheyi Cypriniformes Cyprinidae mahseer blue
2007 1 Osphronemus exodon Perciformes Osphronemidae The Elephant ear Goramy
1997 1 Osphronemus laticlavius Perciformes Osphronemidae The Asian Goramy red tail
2006 3 Paraneetroplus (Vieja) synspila (synspilus, synspilum)) Perciformes Cichlidae synspilus
2006 1 Plecostomus sp. Siluriformes Loricariidae chocolate/yellow
2008 1 Potamotrygon motoro or orbignyi Myliobatiformes Potamotrygonidae stingray male
2008 1 Potamotrygon motoro or orbignyi Myliobatiformes Potamotrygonidae stingray female
2012 1 Potamotrygon perhaps laticeps (sold as hystrix) Myliobatiformes Potamotrygonidae stingray male
2012 1 Potamotrygon perhaps laticeps (sold as hystrix) Myliobatiformes Potamotrygonidae stingray female
2008 1 Potomotrygon motoro or orbignyi Myliobatiformes Potamotrygonidae stingray female
2008 1 Potomotrygon motoro or orbignyi Myliobatiformes Potamotrygonidae stingray female
1999 1 Schizodon fasciatus Characiformes Anostomidae Schizodon (barred/spotted)
2000 1 Sorubim lima? Siluriformes Pimelodidae shovelnose
1988 3 Synodontis budgetti Siluriformes Mochokidae black synodontis
2001 2 Synodontis notata Siluriformes Mochokidae notatus synodontis
1999 1 Tilapia buttikoferi Perciformes Cichlidae buttikoferi
2011 1 Paraneetroplus argentia Perciformes Cichlidae the silver cichlid
2011 1 Sperata aor Siluriformes bagridae Indian shovelnose
2011 1 Flowerhorn cichlid

Section C approx 6,000 litres

2000 1 Gymnarchus niloticus Osteoglossiformes Gymnarchidae aba aba


The slow growth rate might have been that the fish had been kept by the pet shop I bought it from, in a 245 litre aquarium with a second aor, multiple Phractocephalus hemioliopterus, and various other fish for a period of 2 years. It really only started to grow again when I got it in 2011.

 

[thebiggerthebetter]

Thanks a bunch, Michael. Awesome lists. I didn't know you partitioned the 15,000 gal. So, the aor is #2 in section B. Who is #1? #3, 4, 5? Is the hierarchy clear? Is this an overall hierarchy or catfish-only?

M: ... I moved it to a 1814 kl and a 850 kl over the summer /13.
V: kl? or l? Are those your outdoor ponds? If yes, I am not familiar with them.

M: ...Wallago attu... I have not seen it since.
V: I remember this case. Still no sighting?

M: ...I often go a year and as much as 3 without seeing my oldest Hemibagrus wyckii and she is bigger at 70 cm.
V: If I didn't lift my clay half-pots when vacuuming, I'd not see mine two at all

M: So I was afraid that the Sperata Aor might be attacked and put it into the 37,800 kl section of the 56 kl.
V: It'd be an interesting experiment to see it in 52,000 gal in terms of interaction with other fish... but I agree, better safe than sorry... for now. Will the aor grow to ~4'? Thee record fish are ~5' in the wild.

OTT: How big is the aba aba now?

 

[arapaimag]

Thanks a bunch, Michael. Awesome lists. I didn't know you partitioned the 15,000 gal. So, the aor is #2 in section B. Who is #1? #3, 4, 5? Is the hierarchy clear? Is this an overall hierarchy or catfish-only?

The Hemibagrus wyckii is now #1. In the old L shape of the tank it probably was also but did need to injure other fish to prove it as it resided in bog wood and caves in the smaller 229 x 254 cm section. The dorado (now in the 196kl) was the open water apex predator. Now the section of the tank it is in is rectangular only...no non aggression wall.
Next in command are the 3 boulengerochromis microlepis.

M: ... I moved it to a 1814 kl and a 850 kl over the summer /13.
V: kl? or l? Are those your outdoor ponds? If yes, I am not familiar with them.
SORRY! it should be Litres. I was writing Pi decimal places on a pad alternatively, while composing the post. These are indoor tanks.

I do however have 13 outdoor ponds of which several house tropicals in the summer months. They range from about 100 litres to several hundred thousand litres (largest is 30 metres by 18 metres by 6 metres deep in the deepest end. I also have a dozen or so vats 900 to 1200 litres that I breed or raise fry outdoors in the warm weather

M: ...Wallago attu... I have not seen it since.
V: I remember this case. Still no sighting?
No but I used to go long periods without seeing my goonch also.


M: ...I often go a year and as much as 3 without seeing my oldest Hemibagrus wyckii and she is bigger at 70 cm.
V: If I didn't lift my clay half-pots when vacuuming, I'd not see mine two at all The smaller of the wyckii does come out and swim around a lot.

M: So I was afraid that the Sperata Aor might be attacked and put it into the 37,800 kl section of the 56 kl.
V: It'd be an interesting experiment to see it in 52,000 gal in terms of interaction with other fish... but I agree, better safe than sorry... for now. Will the aor grow to ~4'? Thee record fish are ~5' in the wild.
Mine was stunted by the store before I got it so I doubt it will grow more than 1 metre.

OTT: How big is the aba aba now?
Somewhere between 95cm and 102 cm guestimated

aaa