Royal gramma acting very strange

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My Royal gramma is acting very strange, I thought he was dying as he is not a great eater so on the skinny side, this morning he was on the sand bed, he always hides in his cave, which is at the top of the rock work, comes out for the odd bite of food, doesn’t like the lights at all, so seeing him on the sand I was worried, he moved around a little but would lay in weird positions which again seemed like he was dying, at one point I thought he had gone so got the net, then he started moving around the sand bed but he then went into the clowns territory just sat in the corner, they went crazy flicking at him, he never fought back just sat there, moved after a few minutes, he seemed to be picking up a little, had a tiny bit of food, moved into his cave sometimes, but would come out again on the sand bed, now he has went back into the clowns area!! Not sure what’s going on, if it’s aggression or he’s went crazy or what, not sure what to do for the best.

Parameters are fine, it’s 14g just him and two clowns, I don’t have a sump or another tank. Up to now the fish have got on fine, no fighting at all, the clowns are not biting him just flicking sand at him but he just sits and watches them do it!

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Reef.

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Likely intimidated and scared from territorial aggression.

he goes to them! Do you think he’s just got confident after all this time, started to come out and just going in the wrong place? Weird he doesn’t head back to his cave? When I got him he would swim in the middle of the tank, for the first few days then he found a cave and never came out apart for food or to chase the cleaner shrimp away, do they normally swim and sit/lay on the sand bed? had him 4-5 months, and this is totally different to how he’s been.
 
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vetteguy53081

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Theyre bold fish.
small meaty foods are best such as brine shrimp-mysis-small plankton
 
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Theyre bold fish.
small meaty foods are best such as brine shrimp-mysis-small plankton

I have around 15 different frozen foods, he’s very picky, tried all those you mentioned, he likes brine and octopus and lobster eggs, that’s about it, I guess today he just got brave and decided to stop hiding then.

But him being on the sand bed had me freaked out.
 
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