powder blue tang size ?

[aussie260]

can someone please tell me the size that a powder blue tang can reach in captivity ? I have done my research but some sources will say 7 inches while others say up to 20 inches
another question is do tangs of diffrent shapes such as yellow and powder blue tangs still shows signs of aggression towards each other ?
cheers

 

[btldreef]

They reach about 8" in captivity. That's the average.
Although tangs of the same species are more aggressive with each other, most still show signs of aggression in general. My Sailfin is relentless on my Blonde Naso. Certain tangs, like the Sohal, are just plain mean, while others, such as the Kole are very peaceful.
Usually with tangs, if you plan on keeping more than one in your tank, you need to research their aggression and plan out when to add them. The more aggressive/bigger fish should be added last.

 

[aussie260]

so a 6ft 180 G tank should be enough for an 8" powder blue ?
i dont know alot about salfin tangs but they must be a very agressive fish to pick on a naso.The nason tangs i have seen in the shops have been huge.I know someone who has a fully grown naso and yellow tang and the naso is about twice the size of the yellow tang

 

[acrylic51]

An 8" PB I would want in at least and 8' tank.....That's a big fish...I've seen some really nice show Blonde Naso and they are huge and needs tons of swimming room as well.

 

[aussie260]

Originally Posted by acrylic51
http:///forum/post/3280451
An 8" PB I would want in at least and 8' tank.....That's a big fish...I've seen some really nice show Blonde Naso and they are huge and needs tons of swimming room as well.
is that because of the sensitivity of the PB tang that they need an 8 ft tank ? many people would agree with you that it needs an 8FT tank yet not many people would say that an 8'' purple or yellow tang would need an 8ft tank

 

[acrylic51]

The tangs need the swimming room length wise. I don't know the correct way to say it, but lets say you had a tank 10' tall and 4' long....still wouldn't be a tank for the fish.....Depth front to back is good, but they need the lateral swimming room.

 

[acrylic51]

Have you ever seen a Male Blonde Naso (Mature) with the long flowing streamer.....There's no way you'd want something that pretty in a 6' long tank.......

 

[btldreef]

Originally Posted by acrylic51
http:///forum/post/3280460
Have you ever seen a Male Blonde Naso (Mature) with the long flowing streamer.....There's no way you'd want something that pretty in a 6' long tank.......
Agreed, I have one, although he's only about 5" right now in my 6' 155G and I know that even when I upgrade to my 225, he has to go
I think if the tank was laid out properly a 180G 6' would be okay, but I wouldn't stock it too heavily. Make that fish the one large fish in the tank.

 

[aussie260]

Originally Posted by acrylic51
http:///forum/post/3280460
Have you ever seen a Male Blonde Naso (Mature) with the long flowing streamer.....There's no way you'd want something that pretty in a 6' long tank.......
I agree , no way a fully grown blonde naso tang can go into a 6ft tank .It was the powder blue that I was questioning , i think I will go with a purple or yellow tang

 

[acrylic51]

I guess what I was getting at wa PB's can be touchy, but they need good opening swimming room and shouldn't be packed in. They are very active swimmers.

 

[aussie260]

cheers, thats what i thought as I have heard about lots of people having trouble keeping PB tangs alive
off topic question but does anyone know how fast emp angels tend to grow per year ? in about 2 years i plan on getting a 300G 10 ft tank.I would like to get one now as small as possible and keep it in the 180 for 2 years if i can

 

[btldreef]

It depends on what you feed them, but you might just want to wait. Keeping fish in tanks that are smaller than recommended can cause aggression.

 

[mr. limpid]

What we are now upping the length of the tank for tangs to 8' everything I've read said they require a 6' tank. I understand the exception to the rule for Naso, but Powder Blue that grows to 9" which is on the small size to most other tangs. Hippo grows to
1'-0; Salfin to 1'-3"; Sohal to 1'-4"; Yellow and Powder Brown to 8", of course these may never reach these sizes in our tanks. Let's break down the size of an average person 6'x2'-8" (waist 32" I wish) 16sf; Powder Blue 9"x1/2" - .03sf; tank 72"x18" -
9sf. If we divide 9sf by .03sf we 300 times larger than the fish mass. If we take average mass of us times 300 we get 4,800sf, if I had 4,800sf home to live in I would be happy. Just my opinion.

 

[aquaknight]

There's why you don't want Powder Blue's in too small of a tank. They are used to defending large areas of territory. Crowd them in with other tangs, and the outcome isn't very pretty.
Additionally the thought-process behind the body-mass comparison if flawed. No human, even track athletes, etc, could live life at the activity level a Powder tang does. You would pass out from exhaustion. And with a 9" tang, it's going to be considerably thicker then 1/2", more along the lines of 2"+. Which would put humans in a 1150sq ft house. Far from adequate. However in a 4800sqft house, you're still free to go outside, travel, etc. A person would eventually become stir-crazy in that house.

 

[mr. limpid]

In that case all marine fish belong in the Ocean and we shouldn't even try to keep them in our tanks, they will adapt. Of course people will go shack wacky we are talking about fish though, I was trying show the relationship to size.

 

[aquaknight]

Originally Posted by Mr. Limpid
http:///forum/post/3280886
In that case all marine fish belong in the Ocean and we shouldn't even try to keep them in our tanks, they will adapt.
That's not true at all, as not all fish are created equal. For example, in the wild, clownfish will rarely, if ever, leave their host anemones. That makes them perfect candidates for aquariums, even down into the 10-20 gallon range. Or a hawkfish, that just skips rock to rock, doesn't need the same aquarium a Golden Pilot Jack does, which swims the open ocean, along side many sharks. Even in the very video I posted, shows the stark contrast among similar fish. The Convict tang is a schooling fish, that IMO is one of the few tangs I don't mind in a 4ft (granted at least a 90gal). They generally stay smaller sized then a Powder Blue, and because of their schooling nature, are much more sociable fish, and get along much better with tankmates. There is much more to successfully stocking an aquarium, then throwing a dart at a page of tangs, or going to the LFS and yelling "I like the blue one!"
Originally Posted by Mr. Limpid
http:///forum/post/3280886
Of course people will go shack wacky we are talking about fish though, I was trying show the relationship to size.
Yea, and your numbers were off for the point you were trying to make. Also a direct comparison of humans to fish has a number of inherit faults, which I felt needed illustrated.

 

[acrylic51]

Originally Posted by AquaKnight
http:///forum/post/3280859
There's why you don't want Powder Blue's in too small of a tank. They are used to defending large areas of territory. Crowd them in with other tangs, and the outcome isn't very pretty.
Additionally the thought-process behind the body-mass comparison if flawed. No human, even track athletes, etc, could live life at the activity level a Powder tang does. You would pass out from exhaustion. And with a 9" tang, it's going to be considerably thicker then 1/2", more along the lines of 2"+. Which would put humans in a 1150sq ft house. Far from adequate. However in a 4800sqft house, you're still free to go outside, travel, etc. A person would eventually become stir-crazy in that house.
Agree

 

[acrylic51]

I made a poor choice about 4 years ago with my Powder Blue and Powder Brown in my 240.....The Brown was introduced first and was bigger than my Blue, and the Blue dominated and controlled the 8' tank, and they only other fish were a pair of clowns at the time. Needless to say the Blue harassed the Brown so bad I had to remove the Brown and give him to my friend.....

 

[btldreef]

This is why if someone is really set on putting a powder blue in a 6', they need to carefully plan their stock list and keep it light. Honestly, I don't think it's worth it, too much of a hassle for a PITA tang.

 

[aussie260]

another question.how much value would i get out of changing to an 8ft 240G tank ? it will cost me $700 just for the tank so most lkely to be over $1000.
will the extra 2 ft
increase my fish options much ?
make life easier for me( the bigger the easier, so some people say) ?
be aprpeciated by the fish i keep ?
i know this can be researched online , just wanted to get some first hand advice of those who have eperience with marine fish.thanks