Help... Fish tank Over-Stocked..... Which fish should I remove?

Question

Tank Size 40gallon. - planted tank.
(36in X 18in X 18in) or (90cm X 45cm X 45cm)

Fishes.... bought too many on impulse.

Which fishes should I REMOVE? Thanks.

2 Angel Fish (2.5in / 6cm)
2 Dwarf Neon Rainbow (2in / 5cm)
3 Silver Molly (1.5in / 4cm)
1 Chinese Algae Eater (1.5in / 4cm)
1 Bronze Corydora (2in / 5cm)
3 Panda Corydora (1in / 3cm)
3 Black Skirt Tetra ( Black Widow) (1.3in / 3cm)
7 Black Neon Tetra (1.3in / 3.5cm)
7 Silvertips Tetra (1.5in / 4cm)
12 Neon Tetra (1in / 3cm)

Answer 1

I would say

Remove the:

2 Angels - too large for the tank when they grow out

3 Silver molly - they too get a bit large and while they won't outgrow your tank, they will take up a big part of it.

1 Chinese algae eater - nasty tempered fish that serves no good purpose in aquariums and IMO shouldn't even be sold .

1 Bronze cory - he's alone without more bronzes

3 Black skirts - need more to make a good school

That should leave you in good shape

MM

Answer 2

What do you mean remove? Are you returning them? Flushing them? Giving them to someone else? Getting a second tank? What? Anyway, the angelfish should be separated because, as full-grown adults, they will need a minimum of 30 gallons each. A pair could stand a 50 gallon tank. They also shouldn't be with the smaller fish because they are considered semi-aggressive because they are territorial and could cause problems for the smaller fish. In a 50 gallon tank, you could put the chinese algae eater in with them. I would also separate the mollies because they can grow quite large; to 6 inches each and as such, also require about 30 gallons each as full grown adults and also because they prefer a brackish water environment with a heavily planted, algae laden tank. Next, with all of your tetras, a total of 31, half of those could fit well in a 40 gallon tank. Tetras remain small, so the 1 inch of fish per 1 gallon of water myth could apply in this case, but even at that, considering that tetras grow easily to 2 inches each, this makes for a 60 gallon tank for just the tetras alone. With a 40 gallon tank, you could put in half of your tetras and two of the small bottom feeders. So, if you don't intend on getting more tanks, you can only keep half of the tetras and two of the corys. The rest need to go back to the store. I'm glad that you realized that you are severely overstocked, and now, at least, you have learned to do your math before you buy instead of afterwards. Good luck!

Answer 3

Those are all pretty small fish except the Angels which will be ok. I'd leave them alone and double up on the filter and do 25% (10 gallons) water changes every week. When the angels get a little size to them they will thin out the population some by eating the neons and black neons.

Answer 4

Angelfish, Dwarf Neon Rainbow FIsh and Silver mollies

Answer 5

Being as your tank is a 40g breeder, which actually has more floor space then a standard 55g, this is what I would personally do. Get rid of the CAE(way to aggressive when older) , 2 Angelfish(tank is kinda short for them), 3 silver mollys(dont belong), and trade the 1 bronze cory for 3 more Pandas. Also debate trading the 3 black skirts for 3 more Rainbows. Youd be set. I dont keep community fish(african cichlids), but do know the grown sizes and types of fish you own. I also own 2 40g breeders, so I know what they can handle depending on filtration. My suggestion would only be eliminating 4 fish in total.

Answer 6

get rid of each thing different than the clarias catfish. The carp all boost too super (3') for the tank as do the Iridescent sharks (4')and the leopard pleco (2'). the nicely-known goldfish can boost to a foot long. the two moors could be ok in a 40 gallon yet they're slower starting to be than the catfish and could get eaten in some months time. A 40 gallon is a sturdy length for an person clarias (18") on that's own and that they do get tame yet want shield lids as they'll climb out of their tanks given threat.

Answer 7

If it were my tank, I would remove the black neons, the black skirt tetras, chinese algae eater, and the mollys. That would leave you with the angels, rainbows, cory's, and two schools of tetra. That may technically be a little overstocked, but imo tetras produce so little waste that they don't seem to impact the bioload too much. If you still feel like that is too many fish, keep only one school of the tetra's.

Answer 8

You could always just buy a bigger filter to compensate for the tank load. If you want to get rid of fish though I would suggest the mollies as they are going to add to the tank population every 28 days if you have males and females. Also consider your angels, they are still growing and may become agressive towards the other fish as they mature. (Remember that angels are a type of cichlid.) With those two species removed you should have a stable tank environment.

Answer 9

remove black skirt tetra semi aggressive, black neon tetra same thing and silver tips the angels will eat neon tetras you should be ok after this

Answer 10

I would remove the cae, he may cause problems, then probably the mollys if they are diff sexes, then the angels if you dont want your other fish being eatin when they get bigger....or you could leave them in there and let them eat the neons..