Need some advise...

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Gambusia
MFK Member
Apr 29, 2005
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I posted here few days ago about picking up two small marbled gobies, Oxyeleotris marmoratus. So far I am having a hard time feeding them (or at leat I think I have a hard time feeding them). Here is the time line:

1) Walked into a LFS Friday night and spotted these two guys. They were 2 inches long and kept in a barebottom tank with half a dozen of 1.5" chocolate cichlids. While speaking with store owner, he hand fed them bits of raw prawn, and they ravenously went after the food
2) After some thought and research I went back on Sunday and purchased both fish. They were placed into a 30G grow out tank with 2 baby bichirs and a chocolate cichlid (all no more than 2.5-3" in size). Just like the guy at the store, I offered some shrimp about an hour after realising them from the bag, and both took it with gusto
3) Monday afternoon, I offered shrimp again but only one goby grabbed it. The other did not react. Without much worrying, I removed untoched pieces a couple of hours later. I figured that since I feed bichirs a hefty portion of live black worms every night, gobies would eat those too, and so there was no cause for concern. That very same evening, one goby seemed to be clearly interested in worms but I could not confirm where he ate any or not
4) Tuesday - no reaction to shrimp. Can not tell if worms are being consumed by gobies or other fish. I removed chocolate cichlid thinking that with his constant poking around he may be stressing them out.
5) Wednesday - I don't think they are feeding AT ALL. Added a dozen or so of baby guppies. So far, no reaction from any fish
6) Thursday - came home from work to realize that all guppies are gone. They could have been eaten by bichirs, although they were never fed any live fish before and these feeders seemed to be a bit too large for their mouths. Interesting side note: I found one of the gobies hidden under the sand -- pretty sweet! Just as before, shrimp was completely ignored, and I don't know if they ate black worms or not

All of my water parameters are normal. I hear that these fish are unstopable gluttons, and so their behavior is beginning to worry me. Are they simply settling into their new tank? But they ate right out of the bag! What else can I do? All ideas, advise and critisism is greatly appreciated.
 
mine (R.I.P) ate only feeders.........rosies, thats it thats all........oh and the ocational tankmate.........but thats another story!!!:D

......throw in some rosies
 
you're worrying too much.

let them settle. drop the food near the fish, if it doesn't eat it the other fishes in your tank will. don't go and start bothering to take the food out and do all kinds of crazy stuff to your tank because you'll just end up stressing them out even more.

sit back and relax.
 
You are right, I guess I am overreacting somewhat. Its just that not seeing a brand new fish eat is a nerve wrecking experience

Even thogh both gobies still ignore any and all food offered, I've made an interesting observation: While they spend the day hiding behind some PVC piping in the corner, at night, gobies begin making their way to the opposite end of the tank (being in a 30 gallon tank, it's a journey 3 feet in lenght) -- they travel to the same spot where a pile of black worms is dropped every night for my bichirs. Unfortunately I can not tell if they are eating at all. They sit there motionless even when the lights go out. But if not eating, why would they even bother coming out of hiding? I guess only time will tell if they come out of their shell
 
it's possible that the tankmates are stressing the new fishes out. bichirs are very active fish and that can be nerve racking for the gobies.

you might consider dividing the tank?
 
M|L;910437; said:
it's possible that the tankmates are stressing the new fishes out. bichirs are very active fish and that can be nerve racking for the gobies.

you might consider dividing the tank?[/QUOTe}

Hmmm... At LFS they were kept in a bare bottom tank full of chocolate cichlids and no place to hide. Yet they ate. I doubt that bichirs would prove to be more stress than cichlids. The again, who knows. I'll wait another day and if nothing chnages will isolate gobies
 
Last night after the lights went out I dropped food in the tank, sat next to eat and watched. This time, instead of offering bits of prawn meat like the guy at the store, the course was hikari carnivore pellets and live black worms. ONe of teh gobies happened to be sitting right next to the spot where food was being dropped. To my amazement he went right after carbivore pellets! After mouthing one for a while he spat it out and shifted attention to black worms. He then was observed ACTIVELy feeding for a good 10 minutes!

While I still have not seen the other one eat, I am pretty sure he does too (Found both fish this morning sitting next to each other right in the "feeding spot"). Also, based on my research, these are notoriously hard to get switched to non-live foods, being that in nature they feed almost exclusively on fishes. In my case however, I feel that the job of converting them is half done -- now that they are eating, that fish that tried to munch on the shrimp pellet last night will be gladly downing them in 2 weeks or less :headbang2
 
As of tonight's feeding both finally took shrimp, so I assume that it took them the whole week to settle down in the tank.
 
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