Chrysichthys ID

Joshuakahan

Redtail Catfish
MFK Member
Jul 9, 2019
4,057
3,883
154
49
I had 3 of these guys come in today. They were just listed as aluminum cats. I have a general idea of care, diet etc.. but I’m hoping someone can tell me which type of Chrysichthys I have
Thanks

005728E8-94E3-4671-BB98-3FAC6E48153B.jpeg

DBD9144F-7850-4336-9D99-A256B2248427.jpeg

D2CC3DE1-9FE7-4F55-981B-C5E1D2EFE310.jpeg

2956C181-9BE7-4C58-ACCA-B7C0D4C9A183.jpeg

826A9E5C-EC0A-49EF-BD60-BD9DAD03672A.jpeg
 

Joshuakahan

Redtail Catfish
MFK Member
Jul 9, 2019
4,057
3,883
154
49

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
15,691
14,059
3,910
Naples, FL, USA
How have you convince yourself of longipinnis? The dorsal fin doesn't seem nearly tall enough for longipinnis.

Chrysichthys are notoriously hard to ID to the species level, even taxonomists say so. We've had our share of them, I never knew their species exactly, I thought one of the most common, or the most common were nigrodigitatus. The only obvious ones are the ornatus for me.

Look at them - half of them look the same: https://www.planetcatfish.com/common/genus.php?genus_id=153#1968
 

Joshuakahan

Redtail Catfish
MFK Member
Jul 9, 2019
4,057
3,883
154
49
The seller had it listed as longipinnis, I must have missed it or forgot, but I’ll check the link
Thanks!

...

Ya you’re right, the dorsal is a little short for longipinnis. I see what you mean, they all look almost the same. Guess I probably won’t ever know.
 
Last edited by a moderator:
  • Like
Reactions: thebiggerthebetter

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
15,691
14,059
3,910
Naples, FL, USA
I'd not count on it but such an exercise can be beneficial still. They are easier to tell when larger / adults. I'd probably engage Planet Catfish too.

Nigrodigitatus is said to reach 2.5ft tip to tip: https://www.planetcatfish.com/common/species.php?species_id=519 but I've never seen them much over 1ft, even our old ones.
 

Joshuakahan

Redtail Catfish
MFK Member
Jul 9, 2019
4,057
3,883
154
49
I'd not count on it but such an exercise can be beneficial still. They are easier to tell when larger / adults. I'd probably engage Planet Catfish too.

Nigrodigitatus is said to reach 2.5ft tip to tip: https://www.planetcatfish.com/common/species.php?species_id=519 but I've never seen them much over 1ft, even our old ones.
I’ve heard they’re extremely slow growers, I’m hoping so, or it’s one of the smaller types
Thanks, I’ll post this question on PC
 

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
15,691
14,059
3,910
Naples, FL, USA
Will look forward to seeing what comes of the PCF inquiry. Yes I heard and experienced a very slow growth after initial 6"-8" or so.
 
  • Like
Reactions: Joshuakahan

Joshuakahan

Redtail Catfish
MFK Member
Jul 9, 2019
4,057
3,883
154
49
Will look forward to seeing what comes of the PCF inquiry. Yes I heard and experienced a very slow growth after initial 6"-8" or so.
Do you know if Chrysichthys hold their own ok? I grabbed 3 and was planning on putting them with my geos, but I’ve seen a few people keeping them in rift tanks without issue it appears and I also have a nice rift tank in need of a catfish. So maybe two with the geos and one in the rift?
 

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
15,691
14,059
3,910
Naples, FL, USA
I don't have that vast experience with them, probably spanning 3-5 years with 3-4 specimen, not counting the ornatus. They seem to be average, not push overs but aggressive fish can hurt them bad, render them almost finless, I rescued one such almost without fins, from a cichlid tank but it was in 2011 and I don't remember anymore what cichlids.
 
zoomed.com
hikariusa.com
aqaimports.com
Store