My new fish - Spectracanthicus zuanoni

All posts regarding the care and breeding of these catfishes from South America.
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My new fish - Spectracanthicus zuanoni

Post by MarcW » Sat Nov 18, 2017 8:05 pm

I was in a local fish shop last weekend, and saw a group of really nice looking CW045, so I decided to go and get a group of them this weekend, unfortunately they lost most of them in the week. Another fish which caught my eye last weekend was Spectracanthicus zuanoni, apparently they have been in the store for several months and have been doing well.

I came home with 6, spending a long time looking at the fish in store, I'm sure I have a mix of sexes but can't be sure how many of each. They vary in size from 8 to 12cm TL.

After all the discussion of Zebras and the Xingu recently, I am pleased to have a little piece of the Xingu at home to try and breed, and they are on the IBAMA positive list (I checked before buying them) :-).

A couple of them have sunken stomachs, but there was poo in the bags I brought them home in, they each had their own bag, so I suspect they may have some internal parasites/worms, so I'm going to treat them with Flubendazole and try to get them back into shape. I wouldn't normally have accepted fish with sunken stomachs, but after a bit of negotiation the one with the most sunken stomach was given to me free, and the rest of the group at less than the ticket price, so I'm going to give it a go.

I have a few questions:

1. There isn't any diet information in the Cat-eLog, I'm assuming they are an omnivore, so I'm going to feed them a primarily vegetarian diet, with some meaty food thrown in maybe once a week. Does that seem like a good start?
2. I assume they are Spectracanthicus zuanoni, not L354? They seem to have round spots rather than variously shaped blotches like L354.
3. Am I right thinking I got a mix of sexes?

Thanks for everyone's help!
IMG_20171118_131449.jpg
Fish 1
IMG_20171118_131157.jpg
Fish 2
IMG_20171118_131004.jpg
Fish 3
IMG_20171118_130710.jpg
Fish 4

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Sat Nov 18, 2017 8:07 pm

The other 2 fish.
Some look quite light coloured, this seems to be their stress colouration, once they were in the tank they were all the same dark colour within 5 minutes.
IMG_20171118_131702.jpg
Fish 5
IMG_20171118_130653.jpg
Fish 6

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Re: My new fish - Spectracanthicus zuanoni

Post by bekateen » Sat Nov 18, 2017 8:29 pm

Good luck, Marc. Sorry I don't know anything to help you here, but I'm sure some people do.

Cheers, Eric

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Sat Nov 18, 2017 8:54 pm

Thanks Eric, I'm having all the usual worries I'm sure most people get with a new group of fish, have they eaten yet, when will they eat, why haven't they eaten, etc.! :-).

I'm sure they will be fine once they're settled in for a week or so.

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Re: My new fish - Spectracanthicus zuanoni

Post by lfinley58 » Sun Nov 19, 2017 6:15 pm

Hi Marc. Your feeding plan sounds good. The primary natural food for the species year round is detritus and a variety of algae (up to 65 species of single cell, multicellular and filamentous) comes in second for most of the year. Invertebrates (insect larvae; small crustaceans; some microinvertebrates that live among the algae and detritus; and sponges) are eaten regularly but in lower quantities.
If you have algae growing on movable platforms in other tanks you might consider moving some into the S. zuanon tanks so that they might be able to graze at will.
If you want to try to get some sponges into them there are frozen foods available which have a sponge component. These are usually marketed as being for marine butterfly fish.
Keep us filled in on how they are doing.
Lee F.

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Sun Nov 19, 2017 8:09 pm

Thanks Lee.

I don't have any algae covered rocks, but I do have some Repashy Solient Green, which I could paint onto some rocks for them. It has a couple types of algae in it but also some meatier ingredients, I'll try to get hold of the Super Green variety which is vegan, for some more algae content.

In the meantime I'll also try courgette, and various algae wafers.

I've added several caves into the tank but they seem to prefer hiding in wood or between filter intake sponges and the glass. Is this a species which only caves when spawning? If so I'll add some more rock work for them to hide in.

Thanks for your help.

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Re: My new fish - Spectracanthicus zuanoni

Post by lfinley58 » Sun Nov 19, 2017 8:19 pm

Hi Marc - Happy to help a bit if I can.
Your feeding plan sounds good - go with it.
I have no experience (or info that comes to mind) regarding spawning in this species. Maybe someone else can chime in on that.
Lee

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Sun Nov 19, 2017 9:44 pm

Thanks again Lee.

I've read the breeding report on here but there isn't much detail. I believe they have only been bred a handful of times and that they are cave spawners.

For now I'll focus on getting them settled in and eating well. In the long term I'll setup a new aquarium for them with lots of rocky crevices and more current.

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Mon Nov 20, 2017 8:49 am

They seemed to eat some of the food offered overnight, Repashy Fruut Luups. I added four, 1cm cubes, one has gone, two are half eaten, and one is almost whole still.

However this tank does occasionally get direct sunlight, the sides and back were covered in a brown algae, this morning that is completely gone! I only cleaned the front glass just before putting them in so I could see them better, I wish I'd left it now!

I'm going to try and figure out a way of filming or photographing them at night, to check up on them and see if they are all active and eating, I'm thinking a remote flash sitting on the cover glass or some sort of infra red camera, like a baby monitor or motion activated wildlife camera.

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Mon Nov 20, 2017 9:45 pm

I've created some Repashy covered bits of slate to see if they go for them. I also ordered a cheap infrared camera to record them overnight to see if I can catch them eating, if its any good I'll post some footage.
IMG_20171120_210557.jpg
IMG_20171120_183433.jpg

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Tue Nov 21, 2017 9:59 am

Well it seemed to work, most of the food was gone from the slate this morning there was roughly 8x4cm by 0.5cm thick Repashy Soilent Green last night and about 3x1cm left this morning. I'll add some more tonight as well as some courgette (zucchini).
IMG_20171121_085146.jpg
I managed to get a picture of the fish with the most sunken stomach, it still doesn't look great, but has come through the flubendazole treatment ok, and I'm hoping with the amount of food missing, it has had something to eat. My infrared camera should arrive today so hopefully I'll be able to work out which ones are eating by tomorrow.
IMG_20171121_085211.jpg

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Re: My new fish - Spectracanthicus zuanoni

Post by lfinley58 » Tue Nov 21, 2017 11:09 am

Marc,
It is a very nice feeding project that you are working on. Keep up the good work.

Lee

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Wed Nov 22, 2017 2:51 pm

I got some footage of them eating, well, at least 4 of the 6 individuals eating at the same time, hopefully they all got some food at some point during the night. My next challenge is to work out how to convert the .av file which the camera saved into something I can put on YouTube to link to here!

There appears to be a problem with the way I put the Repashy on the slate, I boiled the slate as it had been in my garage for quite a while, then applied the mix soon after, it would appear that the hot slate, contracted slightly or somehow effected the bond between the food and the slate, as they have now come away from the rock after being stored in the fridge. I'll give it another go with cold pieces of slate and see how it goes.

There were a few scrapes taken off of the courgette skin, I'll try it again tonight to see if they eat any more.
IMG_20171122_073229.jpg
IMG_20171122_082516.jpg

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Wed Nov 22, 2017 4:44 pm

I've figured out the video, see below for some footage of my new fish at night! They like to hang around the food and just eat for a second or two every few minutes. On the left is a courgette, and in the middle a sheet of Repashy Soilent Green.


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Re: My new fish - Spectracanthicus zuanoni

Post by Jobro » Wed Nov 22, 2017 9:01 pm

nice creepy video xD these white eyes really give me the creeps :D

where did you get the cam and how much was it? I might like to try this as well :D

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Wed Nov 22, 2017 9:19 pm

Thanks, yeah the reflection in their eyes is creepy! It was completely dark in the room the camera seemed to work quite well.

The only issue I had with it is that it saves the files on a memory card in .av files which I'd never heard of before and I had to download some unprofessional looking software after a few virus scans to convert it so I could put it on YouTube.

This is the same camera I used: https://www.amazon.co.uk/FLOUREON-Wirel ... 2FBlack%29

It was £26.99, if you search for an infrared or night vision security camera it should return many similar cameras.

I need to move it further from the glass as anything close to the glass isn't quite in focus.

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Thu Nov 23, 2017 1:35 pm

I got some more footage of them feeding last night, I'm hopeful that they are all eating. Again just a couple scratches off of the courgette skin, I'll keep on offering it for a couple more nights to see if they take to it, then switch to sweet potato for a bit.
IMG_20171123_072430.jpg
Both Repashy mixes I offered were eaten, although there seemed to be a preference for the Fruut Luups over Soilent Green, the larger fish had most of the Fruut Luups while the smaller fish went for the Soilent Green. This may have been related to territory rather then food preference. So tonight I'm going to swap around the positions of those two foods to see if they still show a preference for the Fruut Luups.

In the videos below Soilent Green is the block on the left, courgette in the middle then Fruut Luups on a piece of slate on the right. The videos are 6x speed, otherwise it can be pretty dull to watch :-).



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Re: My new fish - Spectracanthicus zuanoni

Post by torusle » Thu Nov 23, 2017 2:13 pm

I always put some scratches on the courgette or cucumber using my fingernails before I put it into the tank.

Don't know why, but the fish take less time to start feeding on it. Could be the smell or maybe they think that the food is good because they're not the first one to chew on it. :-)

Works for me. Maybe worth a try.

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Re: My new fish - Spectracanthicus zuanoni

Post by Jobro » Thu Nov 23, 2017 7:21 pm

If plecos see at night, could they maybe see infrared?

stupid me, there wouldn't be lots of infrared light during night without any LEDs xD

But I found that Pelvicachromis taeniatus can actually see infrared somehow. Maybe plecos could as well.

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Re: My new fish - Spectracanthicus zuanoni

Post by MarcW » Thu Nov 23, 2017 8:00 pm

I believe that some animals can see infrared, if the catfish can see it, their behaviour doesn't seem to be effected by it. Certainly if I shine a torch in the tank they swim away, maybe they don't associate infrared with danger as they seem to do with the spectrum of light we can see?
IMG_20171123_194951~2.jpg
There is a ring of LEDs around the lens of the camera, bad picture attached!

They never seem to be very bright though, no brighter than pictured above, it also appears red rather than the purple it came out as in the picture.

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