the annoyance of this hobby
One problem with this hobby is finding out what works in your tank and how many and what fish to put in your tank as the bigger fish almost always look much prettier but think of it from the fishes point of view... an overstocked undersized tank stresses the fish out a lot. Here are a few fish that are commonly put in undersized tanks.
KEY: fish- minimum tank size
Sailfin tang- 180 gallons long
Emperor angel- 220 gallons
Regal blue tang- 140 gallons long
Yellow tang- 140 gallons long
Copperband butterflyfish- 140 gallons
Naso tang- 240 gallons long
Clown tang- 260 gallons long
Panther grouper- 260 gallons
**If you wonder what "long" means, keep reading**
You should also keep in mind that it is not just the gallonage of the tank but dimensions as well because tangs are are open water swimmers, so as result need a lot of open swimming space in the aquarium.You could have a ridiculously tall 700 gallon with little width and it still would not be okay for a tang of any kind. This is why tangs need *long* tanks more than anything... most require a tank of at least 6'.
Also, if you are considering tangs, an ideal rock work structure is a long structure of rocks in the middle of the tank so they have lots of room to swim behind and get away from anything when they are scared or frightened and then show themselves if they feel like it and are comfortable with coming out.
Most of all, do your research before anything because some tangs, such as the Achilles, need a ridiculously long tank because they are some of the most swimming room demanding tangs in the hobby. Also keep in mind that Achilles tangs have *extremely* low survival rates in home aquariums.
Please try to remember that these are just my opinions. Some people say they need bigger others say you can have them in a smaller tank. This is just what I think is ideal for these fish.
IMPORTANT one of the most important things to remember when getting a tang is as stated before they can swim for miles and so need AMPLE swimming room which means a good clear pathway in the tank for your viewing pleasure at the front but ideally at the front and back.
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