Little aquarium sharks?

Question

In the future i want to buy a 300litre aquarium im planning to put 4 angelfish 7 guppies 2 black mollies and 2 silver mollies 2 dwalf puffer fish (how big do they grow) and 1 male and 1 female betta fish i am think ing of putting 1 shark is this ok will the aquarium be overcrowded and is it a bad mix of fish whats the best shark to buy that are pretty not expansive and are not agressive i will also add 2 corydoras please answer and also do black mollies and silver mollies mate together or not and do black mollie lay eggs

if i take out all the mollies and have 2 sharks instead and take the bettas away will the tank be better

Answer 1

The main problem you will have is little aquarium sharks don't stay little. Of all the freshwater fish sold as "sharks" probably the smallest is Bala Sharks which hit about 7-8" in aquarium conditions. Most are actually catfish that will easily grow to over a foot and only make good tank mates for other very large fish in a very large tank. Something around the size of a 450 liter would be needed for most of the freshwater "sharks".

The dwarf puffers aren't really a good idea in a community tank either. They are major fin and body part nippers and have rather special needs for their diet. Here's some more info about them.

http://www.dwarfpuffers.com/

The guppies, corys and angels will do great together and make a wonderful basis for the tank. I would say that the mollies will also do ok in the tank, but they really do better and prefer more salt in the water than the other 3 type of fish.

The male and female betta together is asking for trouble. Males are very territorial when it comes to other bettas and will only allow a female in his territory when she is ready to breed. Otherwise he will kill her, so I would strongly advise against putting both in the tank. If you want more than one betta in the tank, add several females, they won't fight.

You might want to consider adding a few of the medium to larger tatras to the tank instead of the sharks. Some Congo tetras would be an awesome addition to the tank as would lemons, flame or blue flame tetras.

Just my two cents worth

MM

Answer 2

I have a Dalmatian Mollie who just had babies yesterday. All Mollies will breed with each other. It doesn't matter what kind they are, if they're a Mollie they'll do it! Mollies are live bearers. The mother will give birth to many tiny little babies. Mine had about 40! Also keep in mind that once a female Mollie gets pregnant she stays pregnant for 6 months. After she has the babies (after appx. 1 month) she stays pregnant and can have more babies without breeding with a male. There are fertilized eggs inside of her which continue to grow and she may have more babies throughout the 6 month period.

Also I have 2 bala sharks in my tank. These are schooling fish and like to have a partner so I would suggest getting 2 if you're going to get a shark. They are a non aggressive fish.

My tank is 100 gallons which is larger than yours. I definitely would not put that many fish in the tank. They will be overcrowded. I have 15 fish in my tank and do not plan on adding any more. Hope this helped! =)

Answer 3

If you want to get a shark, a Redtail or Rainbow Shark would be the best option. Only keep one in a tank that size because they do best as the only shark in the tank. In that case, you will need to lose the Mollies because they will be immediately killed by the shark (Mollies are extremely stupid fish, they have no sense of territory boundaries, my Molly didn't even last a whole day before the shark killed it). No matter what, you will need to get rid of the Dwarf Puffers, you will soon see your Angels' fins begin to dissapear. They will saw through any fish they want and should be kept with their own species or other aggressive fish. Your Angels may eat your Guppies or they may not, it depends on how smart your Guppies are... the mix of fish you are planning on keeping is never going to work, if you go find a family owned fish store (not a chain like Petco or Petsmart), they could probably give you a pretty good idea of fish to keep in a tank your size.

Answer 4

One Red Tail Shark would probably be a nice addition, although they do get fairly large (6 inches) and can be a bit aggressive. Get rid of the Dwarf Puffers, though. Either get them their own tank (Three will do nicely in a well planted 10 gallon tank by themselves), or bring them back to the fish store for credit on a Red Tail. Dwarf Puffers are mean little suckers and will chew your other fish's fins and tails. They might be small, but they are vicious. Dwarf Puffers only get to be about an inch and a half, but they will attack damn near any size fish.

Bala Sharks are also nice but they could grow to be around 12 inches and like to be in a school of at least 2 or 3. They do grow pretty slowly however.

Answer 5

Im not to sure about the pufffer, But you cant keep a male and female betta together, and angel fish should be kept in there own tank because they will get picked on... and bettas and angel fish dont mix, Leave the shark out, and the mollies will have babies.. give birth to little fish, so will the guppies if you cant females,

Answer 6

If they were black and silver then you might be refering to the Pangasius Cat Fish! Try searching under that name! Our local aquarium has a specimen about 3ft in length! It was rescued from a too small tank! It looks huge in his 8ft one and is housed with an equally large Plecostomus.They are a fish that can grow to enormous size and even though a catfish are incredibly shark like! I'm not too sure how big 100 gallon (Imperial or US?) aquariums are but they should be about 6ft or more. These fish grow to a fantastic size and may still outgrow it! I wish I had a tank big enough!

Answer 7

well there is this one type of shark that only gets like as big as an adult middle finger and that might be good! umm i dont think you should have that many fish! if you do i would get all the same gender of the same fish but have diff. types of fish!

Answer 8

That's a lot of fish with a wide variety of needs in a not so large tank.

Answer 9

do not put betta they don't like other fish in there tank so the will try to kill all the other fish!

Answer 10

300 litres is huge, your fish should not be overcrowded. About the mating thing, don't buy both fish if you don't want babies. Idk what shark to buy, they are all cool.