Size Tank for Black Rhom?
- Thread starter Pankakes
- Start date
From the Piranha Info Sticky... Sorry if i posted the wrong info 
Scientific Name: Serrasalmus rhombeus
Common Names: Rhombeus Piranha, Black Piranha, Rhom
Distribution: Widespread throughout South America.
Size: 16 inches (Captive), 22 inches (wild)
Captivity: Tank size and volume depends on the size of the fish, however 100 gallons is the minimum, and 150 gallons being good for a full adult in order to reach a good size. A powerful and efficient filtration system is needed. A temperature of 24-30C, and pH of 5.5-7.5 is required.
Personal Comment: Their mean looks reflect this fish’s temperament. Like most of the Serrasalmus species, they are solitary. They go through vast transformations physically during their life-span. They are also very slow growers, but as they grow they become less skittish and bolder. Certainly a show/centre piece fish.
Scientific Name: Serrasalmus rhombeus
Common Names: Rhombeus Piranha, Black Piranha, Rhom
Distribution: Widespread throughout South America.
Size: 16 inches (Captive), 22 inches (wild)
Captivity: Tank size and volume depends on the size of the fish, however 100 gallons is the minimum, and 150 gallons being good for a full adult in order to reach a good size. A powerful and efficient filtration system is needed. A temperature of 24-30C, and pH of 5.5-7.5 is required.
Personal Comment: Their mean looks reflect this fish’s temperament. Like most of the Serrasalmus species, they are solitary. They go through vast transformations physically during their life-span. They are also very slow growers, but as they grow they become less skittish and bolder. Certainly a show/centre piece fish.
My rhom is probably nearing the 7 inch mark. I bought him at I believe around 1 maybe 2 inches. Since then, about 1 nearly 2 years ago, he has grown to nearly 7 inches possibly more. He's in a 25 long, which in my opinion still fits him. I am however beginning to feel there is no other way I can avoid the upgrade for much longer. I want to give him a fresh, new, larger tank, and possibly more natural (more current more plants). I am thinking a 65 long to last as long as possible until I'd be forced to upgrade again. I am in the same boat!
if you are considering of getting a tank right now then a black piranha, then I would suggestion you skip the 55g and go straight to at least a 75g or even better, a 120g (4x2x2). you can keep one in there for life, unless you get one at monster size to start with.
if you already have a 55g then depends on the size of your fish, you can probably keep one in there until it hits 7-8" before you need a bigger tank
if you already have a 55g then depends on the size of your fish, you can probably keep one in there until it hits 7-8" before you need a bigger tank
Latentk;3252033; said:
All Jp is doing is giving advice on what would be beneficial for the Rhom, its not to say what you are doing with yours is wrong and even though he seems 100% perfect and happy i can guarantee if you had to put him in a larger tank he would enjoy it a lot more but of course it differs from fish to fish i moved my piranhas to a bigger tank even though they still small and instantly they are a lot more happier and don't even hide anymore, but just remember this is only advice and a observations i have made.
Latentk;3252033; said:
how can we tell a fish is happy or depressed? sometimes we can't even tell if a human being is having any mental problem.
Can you put a fish in a small tank, of course yes. would that be in the best interest of the fish? I'm afraid that I have to say no. We've already taken the fish out of its wild home against its free will, why not give it a proper glass cage to call home for the rest of its imprisonment?
all I'm trying to say is if you value your fish and would like to provide it with a proper long term home, a bigger, wider tank will be required.
in the end, it is your fish, your call. just remember, all the crazy ppl here providing larger than average tank to a solo fish is not for no reason.
