Did you know fantastic help is an anagram of Planet Catfish? This forum is for those of you with pictures of your catfish who are looking for help identifying them. There are many here to help and a firm ID is the first step towards keeping your catfish in the best conditions.
Welcome to PCF, friend. Looks like what they call a common pleco. Your tank must be real nice from that little pic so you must not be a novice fish-keeper but Racoll is right - your new fish appears to be sick - scales are raised like in a case of dropsey, red color may mean inflammation. Any new fish should be quarantined, especially something looking that sick. Should not be bought in the first place unless with the intent to save it.
There is nothing wrong with your follow-up questions - ask away all you want - but FYI and to better introduce you to the forum: being a prominent and leading Ichthyologist, Silurus is very rarely wrong in ID-ing. You will come to realize if you stick around. PCF is not your average forum. There are many high level hobbyists and aficionados here. Racoll, e.g., is an Ichthyologist as well. So, you see you are getting world-class help right off the bat with your first question!
I was asking if hes sure, cos in my eyes its not looking like an Pleco. But there are alot of species in that family, so its possible I will look for this night and see how hes looking tomorrow. Otherwise i bring him back and trade him.
Nimitz, the reason this fish looks nothing like your other common pleco is because it is a man-made, selectively bred variety (like the different breeds of dog). Without knowing that, I can see why you thought it was not the same.
I think I may have been wrong about it being sick, but I am not entirely sure still. The fish also looks thin, and there seems to be some redness on the body, and a white patch under the left eye.
@Panaque Ok So the dorsel fin rays saying its a from the Pleco family. That is interesting. Can you tell me more about the difference from other catfish?
@Racoll Ah that explains alot. So its man-made. Poor little fellow. He had not enough food, to thin. But that i wil fix. To me he dont look very sick to be honoust. In stress he was yesterday alot. The patch under his left eye i cant find. I will look when the lights are on. In the evening he was fighting alot with the other Pleco. But i believe that will be over in a few days.
As with many of the 'suckermouth' catfish the hypostomus species often called Rusty Pleco is best identified by its 'L' number L077, although this in its self is not the full story.
For decades it has been next to impossible to correctly identify many of the species of South American suckermouth catfish of the Hypostomus family, even for scienctific experts. Indeed it is possible that many of the numerious so-called species are infact only regional colour variations of the same fish, a theory supported be the sciencetific communities inability to find reliable data other than colour to distinguish between individuals.
They do demand good water quality. The ideal temperature is 25–30 °C (77–86 °F), and the pH should be between 6,5 - 7,4. Algae tablets should be included in the diet.
However for us it does'nt really matter wither we refer to this particular variant by its name or number, its still a nice addition to any aquarium