Pajama Cardinal

Pajama Cardinal

Sphaeramia nematoptera


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Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Carnivore
Reef Safe: Yes
Minimum Tank Size: 20 gallons
Max Size: 4 inches
The Pajama Cardinal, Sphaeramia nematoptera, has a greenish yellow front half, divided by a black band in the middle of their body, followed by a spotted or polka dot dorsal region that is an off-white color with vibrant red-orange spots and elongated forked fins. They hardy and a great choice for a beginner. Since they are very peaceful and social fish, they are best kept in a peaceful reef tank and can even be kept in schools if the tank is large enough.

Cardinals are reef safe and will not bother any corals or inverts present in the tank. Though they are slower swimmers which makes them slower eaters as well. Diet should include a variety of live or frozen mysis or vitamin enriched brine shrimp, 2-3 times daily.

Not a very bright colored fish but love how mellow he is. He just likes to watch what everyone's doing. Can't beat the price.


Reviewed by: Martha Cross on May 31, 2017

Great little fish. Arrived in amazing condition. Once acclimated were quick to swim around and had them eating by the next day. Hardy fish with beautiful coloring and great personalities. One of my favorite.


Reviewed by: Steve on April 19, 2016

The fish was shipped extremely well, and it was a perfect addition to my reef tank. I acclimated according to the instructions, and I have had no problems with any of the fish I have received. What more can you ask for? Cheaper then my local fish store and it was delivered to my front door the next day.


Reviewed by: Josh on Feb. 7, 2016

Docile; make a presence. Always hanging around


Reviewed by: Allen Sater on May 21, 2015

I have 3 of these I bought here and had shipped to MN this November. The arrived on a 21 degree day but after slow drip acclimation made it and swim lazily around my 40gal Reef Tank. They are a colorful addition to my tank and interesting to watch. I did not know before but do now that they are night foragers, so I will have to start dropping some pellets in at night. They do well when I feed the tank twice a day with Mysis Shrimp.


Reviewed by: Phil on Jan. 7, 2015


Reviewed by: Sharon Richards on Nov. 1, 2014


Reviewed by: Mary Stone on Oct. 7, 2014

One of my favorite fish. Small but hardy when they arrived, I enjoy watching my tank grow so small is good with me


Reviewed by: Sandy Brown on Sept. 9, 2014

Good fish order 3 one died other doing very good but for price did not even bother with warrenty I meen you get 3 for price off one how can you complain


Reviewed by: Frank Roldan on Aug. 21, 2014

These two guys have become the guardians of my mini rank. Hovering over their tank mates and making quick bursts whenever they have somewhere to go. Really cool colors and they fed soon after introduction into the community. Mysis shrimp and varied flakes are consumed . They like to stay up at night and roam. Very peaceful little buddies.


Reviewed by: James Fullard on Aug. 15, 2014

Currently Pajama Cardinal does not have any questions and answers.

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