Twin Spot Goby...

mmittlesteadt

New member
I recently acquired a Twin Spot Goby from my LFS. I had been observing him there daily for the past month. Active, apparently feeding (definitely sifting) and look very healthy. However I know that my LFS is in no position to really give it personal attention and care so leaving it there would make it less likely to survive than in my tank (however long that may be). I did not get him on impulse and I've researched him before getting him and I know I can do better for him than it living in the tank at the LFS.

I already realize the poor track record of keeping them in home aquaria. I also understand that their feeding habits and food source is extremely problematic. So this is not a thread posing a question as to whether or not I should keep him or return him. I'm more interested in any information anyone can share with me about helping him live as long and as healthy as possible. I have scoured the internet and read absolutely everything I can possibly find on them.

I have him in a 40 gallon breeder reef tank. Tank is only going on 2 months (fully cycled with no ammonia, nitrite and less than 5ppm nitrates) and it has a 65 gallon sump with a 27 gallon refugium with chaeto and copepods. It currently has no competition (and never will) for food. There are two Ocellarus Clownfish and one Firefish in the tank. There are ample caves in the rockwork even under the sand (rockwork is directly on the bottom). The firefish made a cave in the middle section and the Goby has made two caves on each end of the tank under rock ledges (that are under the sand).

He is only about 1 1/2" long and is very active morning and evening (that I can tell...I'm not home during the day). I have been target feeding him Reef Chili every morning and night. I make a super concentrated batch of it and I'm injecting it about 1/2" into the sandbed and on it, all around the two rockwork caves he inhabits. Some gets out into open water and my corals and other fish love it.

By sticking the bottle tip into the sand bed and making a trail in it while I dose the Reef Chili, I can see where I put it. I've seen him come out and follow this trail actively sifting. From what I can see the sand is coming out as he sifts, but not any of the plankton in the Reef Chili. I can only assume he is gobbling it up as he is sifts along this trail. I also have New Life spectrum sinking pellets that settle on the sandbed in little eddy's around his caves where there is very little water flow. I can't verify that he is eating them though.

It is my understanding that these Twin Spot Gobies do not eat the larger copepods found in rockwork, but rather the smaller zooplankton in the sand.

I'm doing the best I can for it, and honestly he isn't going to get more personal attention anywhere else and the feeding schedule is not a bother to me. I'm also making sure my skimmer is handling the feeding. Is there any more I can do for him? Any suggestions on anything else I can do for him are appreciated.

Here's a pic of him in my tank near one of his caves. He's not fat, but he's not wasting away either.

twinspot2.jpg
 
Is it possible to acquire him/her a mate? Some fish just do better in pairs. I've had this fish on my list for years, but I'm waiting until I find a m/f pair of them that are fat and eating prepared foods.

So far, I've found single fat ones eating prepared foods or unhealthy looking pairs. I was 10 minutes late at one LFS; some idiot picked up only one of a pair of fat, eating fish. Lol.
 
Is it possible to acquire him/her a mate? Some fish just do better in pairs. I've had this fish on my list for years, but I'm waiting until I find a m/f pair of them that are fat and eating prepared foods.

So far, I've found single fat ones eating prepared foods or unhealthy looking pairs. I was 10 minutes late at one LFS; some idiot picked up only one of a pair of fat, eating fish. Lol.

I would not recommend this fish to anyone (not even experts) given the extreme difficulty in captivity. I urge all LFS's to not stock them, and people to not buy them. Mine was more of a rescue attempt.

Good luck finding a single fish or a pair that are eating enough prepared foods to survive more than 6 months. Most likely will not happen given their feed is solely microscopic benthic zooplankton found ONLY in sandbeds.

I have another thread documenting my Twin Spot HERE.
 
Very interesting thing happened. I added a Chalk Bass to my tank, which just happens to be the only other fish that was in the frag tank at the LFS along with the Twin Spot Goby I bought from that same tank. Once the Chalk Bass and the Twin Spot were together again in my tank, the Twin Spot has been out and about going all over my sandbed like crazy. He's never been this active. The only difference was adding a tankmate he had previously.
 
Dither fish. Sometimes an overly timid, distracted fish benefits from the addition of a chromis or other fish that has a habit of vanishing when a predator is about. It may have given him something to wake up his nervous system or just calm it down.
 
Dither fish. Sometimes an overly timid, distracted fish benefits from the addition of a chromis or other fish that has a habit of vanishing when a predator is about. It may have given him something to wake up his nervous system or just calm it down.

Yeah. I'm aware of dither fish. I also have had two small ocellaris clowns and a firefish in there. Now the clowns like to to hang up near the top of the tank and the firefish is a cave dweller until feeding time. The chalk bass hides out too, but is more active tank-wide than the others. But the Chalk Bass and Twin Spot were together at the LFS and now in my tank again.

Whatever the reason is, I'm happy my Twin Spot is very active.
 
Isn't the Twin Spot Goby well camouflaged? I mean one could look right at him and never see him...

twinspotcamo.jpg


And speaking of my Twin Spot, I originally wanted a Diamond Watchman Goby as part of my intent was to have creatures fulfilling specific roles in my reef beyond something to look at. Yup, you wanna be in my reef you better be willing to work for your food! LOL.

I wanted a fish that worked the sandbed to help maintain it naturally. I have a few snails that will go over it, and a few hermits, but I wanted a fish to maintain it. Well, by now everyone knows my saga with the Twin Spot but he only dug caves around my rockwork (which did work the sand in those areas).

But since I added the Chalk Bass, my Twin Spot has been VERY active and he is actually going over the entire sandbed now. You can see in the pic below that although he is still sticking to areas along edges of things, he is actually going all out and working for his food. LOL. I've had a bit of an algae breakout again but I'm not one to panic over such trivial things so as usual I just let it run its course and the Twin Spot is really doing so great now. I think he might just make it in my tank after all.

He is taking to some pellet food and he is getting his reef chili by target feeding the sandbed (although the whole tank gets it).

twinspotsand.jpg
 
This hobby is so fascinating. I went from worrying about my Twin Spot to watching him be one of the most active fish in my tank...well, almost the most. My Chalk bass went from hiding out to being my Twin Spot's escort. They swim everywhere together. Wherever my Twin Spot is, my Chalk Bass is right there with him.

This goes beyond the Chalk Bass being just a dither fish. They were the only fish together at the LFS in a frag tank. I bought the Twin Spot a while ago and just recently added the Chalk Bass. Ever since I brought the Chalk Bass home my Twin Spot has been out and everywhere in the tank and he's even taken to swimming up onto rocks and out in open water, all with the Chalk Bass by his side.

VERY interesting behavior. Here they are swimming together (yes, the Twin Spot is swimming out in open water...as evidenced by his shadow on the sand below)...

twinspotchalk.jpg
 
Super, they're great fish when alive! I had a pair for several years cleaning the bottom of a seahorse tank. Mysis twice a day for the horses made a lot of mess on the sand and those twinspots would move all the sand to one end of the tank and back over a weekend. Little bulldozers.
 
Happy to report that my Twin Spot Goby is still going strong and is always very active.
i'm curious if things are still going well with this fish? enough time has passed that the dietary needs will have been either met or have not.
i bought this fish recently after not completely understanding the extent of its extensive care requirements. i've been dosing the gravel reef roids in its normal hunting spots and the fish seems to focus its attention directly there to feed after. fingers crossed.
 
i'm curious if things are still going well with this fish? enough time has passed that the dietary needs will have been either met or have not.
i bought this fish recently after not completely understanding the extent of its extensive care requirements. i've been dosing the gravel reef roids in its normal hunting spots and the fish seems to focus its attention directly there to feed after. fingers crossed.

Yes, my Twin Spot is doing great! I'm just now using Bene-Reef food to feed my corals and my Twin Spot. The food settles better on the bottom, rather staying suspended like Reef Chili, so I'm not having to target feed him. My LFS keeps it in stock now. Came highly recommended by an aquarist friend of the guy who runs the SW department. That guy has worked at some pretty big public aquariums and it's supposed to be great for bottom feeders and sand sifters (gobies, starfish, etc.) Seems to be a great find for me.
 
Its really cool to see your twin spot is still going strong a year later. I helped my best friend start a 80 cube at my house about 6 months ago. Going against my advise he bought a pair of these from an online retailer after the tank was set up for only 2 months. We added Fiji mud into the sump and also added 2 orders of pods etc as well as whatever came in on the macro algae and from some of the rocks from my 180. I feed really nothing special to them and I have never seen them eat any prepared. To be honest I figured we would have lost them by now. I did notice after adding the Fiji mud there were much more very small pods on the lower portion of the glass. they are very cool fish and I think I am going to look into the bene reef. I wonder if mandarin's will go for it as well?
 
Its really cool to see your twin spot is still going strong a year later. I helped my best friend start a 80 cube at my house about 6 months ago. Going against my advise he bought a pair of these from an online retailer after the tank was set up for only 2 months. We added Fiji mud into the sump and also added 2 orders of pods etc as well as whatever came in on the macro algae and from some of the rocks from my 180. I feed really nothing special to them and I have never seen them eat any prepared. To be honest I figured we would have lost them by now. I did notice after adding the Fiji mud there were much more very small pods on the lower portion of the glass. they are very cool fish and I think I am going to look into the bene reef. I wonder if mandarin's will go for it as well?

A marine biologist friend of mine swears by the Benereef food. It's great for corals too as well as sand sifters (fish, starfish, etc.), and he's having fantastic luck with Mandarins as well.
 
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