How many Royal Grammas...

SeanT

Premium Member
...can be kept in the same tank?

I've all ways only had one but I like them.

Safe in groups or not?

Thank you,
Sean
 
There have been folks with large tanks that have tried it but I do no recall them reporting back on results.
 
Sea Word had a touch tank, way back in the day, that had lots of Brazilian grammas in it, but it had to be thousands of gallons.
In most home aquariums, you're only going to be capable of supporting two Royal grammas. At the most.
I had a breeding pair in a 55, and I now have a breeding pair in my 200. Unfortunately, I lost multiple RG's while trying to form the pair I have now. IME, two RG's in the same tank will either form a pair, or one will be killed. IMHO, if you're not planing to breed them, and raise the offspring, it's best to stick with one RG per tank, because several can be killed before finding two fish that will pair up, and live together peacefully.
 
I frequently use multiple royal grammas. It looks awesome. if you are asking about your 300 cube, you could put at least 6-8 in without issue. it is a big misconception that they can't be housed together. let us know how it goes.
 
I got 6 juveniles in a 190 with passive fish a year ago. 2 were lost. For a couple of months 3 hung out together with 1 solitary on the opposite side. Once they were added my yellow assesors went into hiding and my sunburst anthias.

For the last 6 months they have all split apart and picked a cave or hole to hide in and only come out at feeding time.

Can't say that it worked for me. However if you do a search here you will see that some have had success with groups.
 
I added a group of 3 about 2 months ago. They seem to get along well, with some "ritualistic" mouth contact occasionally. They put their jaws (or noses actually) together and see-saw back and forth for a bit. They do not lock jaws or hurt each other, but it does seem to be a form of establishing dominance to me. They seem to enjoy each other's company so far, and 2 of the 3 are together most of the time, but not always the same 2. The larger of the 3 has made several lairs in various areas of the tank, and can be seen picking up bits of rock and carrying them to and from his little caves. Very entertaining to watch their interactions with one another, we'll see how it all pans out over time.
 
I have a group of 5. One I've had for over a year (maybe 2?), the others for about 8 months. Two occasionally hang out on the left side of the tank (where the original one used to spend all its time), but usually all of them hang out together around the middle/right of the tank. They really enjoy the chasm/pillar area of that side of the tank, which goes from the BB floor, to almost all the way to the top of the 30" tall tank. Zero aggression, and I have to agree with the previous comment, that they seem to prefer being in each others company. I am anxious to see how things develop over time.
 
Interesting to read this. My LFS has a custom 185-195 gallon tank where they have 6+ gold assessors in the tank. This made me wonder if I could do the same with royal grammas, but never asked them about it.
 
I've got a 180g (6' x 2' x 2') softy tank with the following fish:

Tassled filefish
carberryi anthia
Squampinnis anthia
cherub pygmy angel
gray poma/black velvet angel
orange spot filefish
flame hawk
radiant wrasse
copperband bf
humpback cowfish (tetrosomus gibbosus)

Do you think I could add 5 royal grammas or would that be too many fish?
 
It is one of the coolest looking things in a reef to me. I would really like to put a dozen in my 300. Would have the same effect as a group of anthias for much less money with hardier fish.
 
I'd love to see a video.

They get kind of shy when I'm standing right in front of the tank with the camera, but you get the idea from this quick vid. They just sort of hover around the same area...

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