xenacanth9's Fish of the Day

  • We are currently upgrading MFK. thanks! -neo
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DAY 111
https://www.wetspottropicalfish.com/product/mastacembelus-brichardi/
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Blind Congo Spiny Eel
Mastacembelus brichardi

Size: 10”
pH: 6.0-7.0
Tank size: 45G/Individual
Country of origin: Countries throughout the Congo Basin
Diet: Live and frozen foods
Temperament: Relatively peaceful, though predatory. Nocturnal and requires dim lighting
Temperature: 75-85° F

Description

For 2.22.22, I give you Mastacembelus brichardi, a rare, cave-dwelling spiny eel from the Congo Basin. I find the appearance of this fish fascinating, and frankly creepy. Requires very low lighting due to its natural environment. Should only be kept with other cave fish, most of which are very rare in aquaria. Could be kept with cave tetras, which are perhaps the most common cave fish in the trade.
 
DAY 112
https://www.aqua-imports.com/product/papuan-freshwater-cardinalfish-glossamia-aprion/
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Mouth Almighty
Glossamia aprion

Size: 5” [Sometimes larger]
pH: 4.5-8.0
Tank size: 40G/1 small group
Country of origin: Australia, New Guinea
Diet: Live and frozen foods
Temperament: Predatory, though relatively peaceful
Temperature: 70-85° F

Description

Glossamia aprion is one of the very few completely freshwater members of Apogonidae, the cardinalfish, a family of primarily small, marine fish that are well-known amongst marine reef keepers. Though about 70-85° Fahrenheit is recommended for this species, they may be able to withstand nearly 95°! They can reach nearly eight inches in length, though this is rare. One of the rarest fish in the trade. Shoutout to Friller2009 Friller2009 , who can be credited for much of this information.
 
DAY 96
https://www.gotliveeels.com/product/aquarium/
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American Eel
Anguilla rostrata

Size: 3’ [Often larger, often smaller]
pH: 7.0-8.0
Tank size: 125G/Individual
Country of origin: United States, Canada
Diet: Live and frozen foods
Temperament: VERY predatory, though relatively peaceful
Temperature: 60-70° F
sg: 1.000-1.015

Description

Anguilla rostrata is a true North American eel found in freshwater, brackish, and marine conditions throughout the United States, and parts of Canada. Though they travel to the sea to spawn, and spend much of their early development in saltwater, adults are most commonly found in freshwater conditions, and quite often brackish. Full strength marine is by no means recommended for this species. Serves as an important food fish.

A few more details.....
Eels spawn in the Sargasso sea in the middle of the Atlantic ocean. What's interesting is that the American eel and the European eel spawn in the same areas, but do not appear to hybridize. They go through several life stages, I can't recall exactly, but you end up with tiny baby eels. These are the ones that are of primary interest for the aquarist, as they adapt easier to aquarium conditions at that age. I put an eel, a male I believe into a tank with a pumpkinseed and a green sunfish. I had lots of rockwork. Consequently I didn't see him for almost 4 months, then one day he popped up eating pellets at the surface.
You can sex an American eel by its size and typical habitat. The females get much larger than the males, and tend to move into full freshwater. The males tend to stay in low to mild salinity levels, and are most of what the eels they sell for bait in my area are. The hardest part I've found with eels is getting them adjusted enough to feed. I've had more success in sand bottom tanks with rocks and stuff they can burrow under. They also spend some time in the sand, so make sure you have the correct substrate. Try to put them in the tank first, and let them get adjusted and feeding well before adding anymore fish. They are very shy at first, and maybe for a while, but I've only had one that just refused to come out at all. I would find it when cleaning the tank for months, and then it just disappeared. Which brings me to my next point. If an eel doesn't like it's environment, it will seek out a better one. They are magnificent escape artists, so a tight fitting lid with every single hole plugged is a must. This is where I lost all my eels eventually. I couldn't find out how they got out, but get out they did.
 
DAY 113
https://aquariumfishdepot.com/products/murray-cod-maccullochella-peelii-3
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Murray Cod
Maccullochella peelii

Size: 3’
pH: 7.0-8.0
Tank size: 500G/Individual
Country of origin: Australia
Diet: Live and frozen foods
Temperament: Extremely predatory and aggressive
Temperature: 50-70° F

Description

Maccullochella peelii is a monster freshwater perch native to Australia. They are capable of reaching nearly six feet long, though usually reach about half that in captivity. They are also very robust and heavy, and therefore require a larger tank than many other fish their size. These fish are seldom kept outside of Oceania, and are generally not easy to find for sale in other continents. These fish were once critically endangered, though they have since bounced back considerably.
 
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