N: If you have someone who has a live one of these fish I can point you in the right direction. I have been in contact with Dr. John Lundberg about these hybrids. We haven't messaged in a while due to my chaotic circumstances. I was going to provide him with DNA samples of all my past hybrids, but these samples were lost in my latest move. 
I have worked the skeletons of all my hybrids, and sent him pics of them. He is very interested in getting DNA samples as well as studying my skeletons in person. His team has DNA sampled nearly every pimelodid catfish and have the most complete DNA catfish catalog. I can put you in touch with him and you can send him samples from the adipose fin of whatever catfish you'd like identified. He would do it for free since it would be a part of his research. This could shed some light.
TBTB: If you mean the suspected TSN x L. pictus, I don't have anybody. We'd have to try and persuade 2songbirds to do it, unless he'd really wanted to do it without any persuasion. You are far more advanced in this aspect of the hobby than I. Also I read DNA studies do not always show conclusive results and, if not mistaken, e.g., mitochondrial DNA show no info on the father species. I meet people reading scientific papers on these things, esp. amateur breeders. I don't.
N: I was always curious if my Marble x RTC was actually pictus, or marmoratus. Very confusing when you see the large dorsal fin. Ray count and vertebrae count means nothing in these hybrids as they sometimes fuse and deform with the conflicting DNA. Let me know what you think.
TBTB: Interesting... thought... Quite likely I can be wrong then about 2songbirds' fish, as my observation was very shallow... As for yours, I've only seen two photos of suspected L. marmoratus x RTC in the Cat-eLog on PlanetCatfish. Babies. I have never seen one live or even another one on a photo.
N: Here's some pics of the supposed TSN x Blochii. From studying pics in the past and from what I was told by the people who actually make the hybrids this should be a spot on ID. I was also told that fasciatum is the most common TSN species used for this. That TSN x Blochii is probably one of the most docile hybrids I have ever owned. He wouldn't eat unless it was out of my hand. sometimes he would take Cichlid pellets, but usually shrimp. Wouldn't even touch smaller fish.
TBTB: I'd agree with the ID. Thanks for the pics and the info. Good food for thought and for future reference here. Again, this is a second specimen I have seen (both on photos only). Looks like he has a bad caudal pendulum - either a spinal injury or a deformity. Do you think fasciatum is used for the TSN x blochii or for any hybrid involving a TSN? Do you have a guess at which species was the mother and the father (for any of your hybrids, inlcuding the one in the subject)?
N: My Marble x rtc was definitely a pig. All RTC in the eating and growing department. It's also of note that when I got this fish it was 14" and only grew 2" in the year I owned it before it died during a power outage.
TBTB: Which fish? Leiarius x RTC or the TSN x blochii?
TBTB: In a pathetic attempt to keep this on topic, I see the TSN x Leiarius in your photos...
I thought you'd have threads on your fish and just provide the links... I wish we'd started a new thread on your hybrids.
I have worked the skeletons of all my hybrids, and sent him pics of them. He is very interested in getting DNA samples as well as studying my skeletons in person. His team has DNA sampled nearly every pimelodid catfish and have the most complete DNA catfish catalog. I can put you in touch with him and you can send him samples from the adipose fin of whatever catfish you'd like identified. He would do it for free since it would be a part of his research. This could shed some light. TBTB: If you mean the suspected TSN x L. pictus, I don't have anybody. We'd have to try and persuade 2songbirds to do it, unless he'd really wanted to do it without any persuasion. You are far more advanced in this aspect of the hobby than I. Also I read DNA studies do not always show conclusive results and, if not mistaken, e.g., mitochondrial DNA show no info on the father species. I meet people reading scientific papers on these things, esp. amateur breeders. I don't.
N: I was always curious if my Marble x RTC was actually pictus, or marmoratus. Very confusing when you see the large dorsal fin. Ray count and vertebrae count means nothing in these hybrids as they sometimes fuse and deform with the conflicting DNA. Let me know what you think.
TBTB: Interesting... thought... Quite likely I can be wrong then about 2songbirds' fish, as my observation was very shallow... As for yours, I've only seen two photos of suspected L. marmoratus x RTC in the Cat-eLog on PlanetCatfish. Babies. I have never seen one live or even another one on a photo.
N: Here's some pics of the supposed TSN x Blochii. From studying pics in the past and from what I was told by the people who actually make the hybrids this should be a spot on ID. I was also told that fasciatum is the most common TSN species used for this. That TSN x Blochii is probably one of the most docile hybrids I have ever owned. He wouldn't eat unless it was out of my hand. sometimes he would take Cichlid pellets, but usually shrimp. Wouldn't even touch smaller fish.
TBTB: I'd agree with the ID. Thanks for the pics and the info. Good food for thought and for future reference here. Again, this is a second specimen I have seen (both on photos only). Looks like he has a bad caudal pendulum - either a spinal injury or a deformity. Do you think fasciatum is used for the TSN x blochii or for any hybrid involving a TSN? Do you have a guess at which species was the mother and the father (for any of your hybrids, inlcuding the one in the subject)?
N: My Marble x rtc was definitely a pig. All RTC in the eating and growing department. It's also of note that when I got this fish it was 14" and only grew 2" in the year I owned it before it died during a power outage.
TBTB: Which fish? Leiarius x RTC or the TSN x blochii?
TBTB: In a pathetic attempt to keep this on topic, I see the TSN x Leiarius in your photos...
I thought you'd have threads on your fish and just provide the links... I wish we'd started a new thread on your hybrids.
