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I have a new species to work with: Ancistrus claro. The ‘gold marble’ bristlenose catfish is a neat little species. They stay small (less than 3″), are relatively social and active during the day. I have a group of 14 young, wild-caught fish that I am setting up in a 30-breeder. Here is the video, followed by a transcript:
Breeding Project – Ancistrus claro
Welcome back to TedsFishroom… Let’s take a look at what is happening in the breeding projects, and introduce a new species to the program. Another loricariid catfish… Ancistrus claro.
So far I have introduced three breeding projects. Here is a look into what is happening in each of them.
The Panaqolus albivermis are growing. They have become much more active, less shy and come out readily for food. Occasionally I will see one of them exploring a spawning cave, but so far none of the males have taken up more permanent residence. The only change that I am contemplating is to change the type and size of spawning caves.
The Benitochromis nigrodorsalis have settled in and a weak pair has formed. The largest male has started to exert his dominance over the other fish in the tank, and even killed a few tetras. He tolerates one female in his space, but the other two fish are constantly avoiding him. I removed the female, as she was very stressed by the negative attention. The extra male is still holding his own, but I will remove him soon. I want to give the new pair a but more time to cement their bond. I am concerned that removing the extra male too early may result in the dominant male turning on the female he seems to tolerate.
The only changes to the tank have been the addition of some pebbles for more structure and spawning sites, and a power head to provide more current and aeration in the tank. I added the pump because the cichlids were not being very active, but now that the water is really flowing they are coming out into the open more frequently.
The Apistogramma pairs stalled a bit when my reverse osmosis machine started having some problems. You can watch the video on the overhaul of the unit, resulting in water that is much softer and lower in pH. Since fixing that problem the dwarf cichlids are faring much better and showing more signs of spawning. Especially the Apistogramma baenschi pairs. This female appears to be guarding a clutch of eggs.
The Apistogramma sp. ‘Kelleri have also responded well to the softer water. They spawn regularly, but I did see the female holding larvae in her mouth for first time (but I missed getting some video).
A new species to the program are two pairs of wild Apistogramma sp. ‘Abacaxi’. This species needs very low pH, and I am currently working to getting the acidity down to under 5.0. These are young fish, and are just now reaching maturity.
Ancistrus claro is probably one of the best oddball loricariid catfish to come into the hobby in the past 20 years. The common name most frequently given to the fish is the gold marble bristlenose pleco, which accurately describes the coloration of an exceptional male. The base color is green with a network of golden yellow markings. My fish are still young, however, and have not developed their best color.
Ancistrus claro comes from the Rio Claro in the state of Matto Grosso in far southwest Brazil, and is a part of the Rio Parguay system. This distant location from the major fish export cities makes the gold marble pleco an uncommon export, but this year several shipments made it out.
As an aquarium fish, Ancistrus claro has a lot going for it. It is a small species, topping out at under 3 inches, and they are not particularly nasty to each other, colonies of many fish are possible. The water they come from is moderately soft, and successful spawning has been reported in a wide range of pH levels. They are omnivrous leaning to vegetarian, so are not hard to feed. They spawn in caves in typical ancistrus style. If there is one knock against claro, it is that the spawns are relatively small and infrequent, compared to other types of ancistrus.
My colony will be set up in a 30 breeder aquarium on the top row of my racks. The temperature here will stay in the mid-70’s, so I am using a heater to keep the water in the upper 70’s.
The tank is filtered with a Poret cube filter, and current is being provided by a small internal power filter. The natural habitat of the species is described as fast flowing with rocks, pebbles and sand. I am including some wood in the tank for the plecos to chew on. But the primary structure will be rocks and spawning caves.
My tap water is too hard for this species, especially the carbonate hardness, so I will be using reverse osmosis water, and reconstituting it with some general hardness and a little carbonate to buffer the pH. My target is a GH of 4 and KH of 2. I will let the pH be where it will be, but with thee hardness levels the pH will be close to neutral.
I have 14 A. claro in this colony. They are young and not so easy to sex. Males will have the tell-tale tentacles on their face, but females can have a few as well (though most females do not). I think that this groups is about 50-50 males and females. I have had these fish in quarantine for three months with no issues or losses.
The tank is ready for the fish, so in they go and this breeding project is officially started. The available literature describes claro as slow to grow and mature, so I am not expecting much from this group for several months. But you never know…. Fish cannot read.
Please subscribe to my YouTube Channel. You can also read about this breeding project and my other aquarium adventures on my video blog at www.tedsfishroom.com. If you have some experiences with Ancistrus claro that you would like to share, we would love to read about them in the comment section here on YouTube or on the blog site.
Thanks for watching TedsFishroom.