hatchetfish compatibility... or silver dollars - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 18 Old 04-08-2014, 01:13 PM Thread Starter
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hatchetfish compatibility... or silver dollars

I was in an lfs purchasing an angelfish and the silver hatchetfish caught my eye.
I'd like to get some if they are compatible with my other fish.

But I'm also wondering about silver dollars... they're supposed to be in groups of at least 3, right? Will they be ok in a 55 gallon tank?

Here is my current stock in my 55 gallon tank:
angelfish (1)
dwarf gourami (1)
serpae tetra (15)
pearl danio (15)
platy (6)
amano shrimp (3)

I would get one or the other- silver dollars or hatchetfish but not both.
Are they compatible?
Will I be over stocked?

Also wondering about the hatchetfish being able to fly... do they do that often and is it easy for them to fly out of an open-top aquarium with water about an inch below the top?

TIA!


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post #2 of 18 Old 04-08-2014, 01:35 PM
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Serpae tetras may be fin nippers to your angel. Amano shrimp may become food for your angel. However, where you are is just over the limit. You'd be good if you had extra filtration. What kind of filter are you running?

Silver dollars may be fin nippers to your angel and hatchets can be jumpers. Both species are recommended 5 minimum for them to be less stressed.
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post #3 of 18 Old 04-08-2014, 01:46 PM
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Personally I would say you are already overstocked and I am wondering about the compatibility of Hatchets and Serpaes. The Tetra may just be a little too 'lively'' as tank mates should be peaceful for Hatchets and Serpae are one of the more 'boisterous' Characidae. The Hatchet is the one fish that can actually fly rather than just jump/glide and would have absolutely no problem getting out of the tank you have described, tight fitting cover glasses are an essential for Hatchets.

The Silver Dollar is a six inch fish which should be kept in groups of 5 or more. I would say that your tank is considerably less than the minimum required to house them.

Sorry
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post #4 of 18 Old 04-08-2014, 01:46 PM
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hatchetfish compatibility... or silver dollars

I don't think that you are overstocked at all. A 55 can accommodate a lot of little fish. Too, the 30 fish between 2 schools is not the same as having 5 schools of 6 fish, which would use considerably more space.

Silver dollars are big, active fish - I wouldn't keep them in a 55. The hatchets are much better suited, and are a better match for your other fish. I would not get less than 10 hatchets, though you do not have to get all 10 at once. They really appreciate having a decent size school for security.

I wouldn't worry much about the hatchets and serpaes. The hatchets will stay near the surface and the serpaes stay near the bottom.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta

Last edited by jaysee; 04-08-2014 at 01:54 PM.
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post #5 of 18 Old 04-08-2014, 01:59 PM
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Quote:
Originally Posted by jaysee View Post
I wouldn't worry much about the hatchets and serpaes. The hatchets will stay near the surface and the serpaes stay near the bottom.
I think the one thing we will have to agree on is that Serpae are very variable. Some, for whatever reason, can be very peaceful whereas others can be absolute demons. I will also say our Serpae tend to sit quite high in the tank, certainly within striking range of Hatchets when the mood takes them.
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post #6 of 18 Old 04-08-2014, 02:15 PM Thread Starter
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Ok, thanks, everyone.
Yeah, I noticed the serpaes can be a bit of a bother to the angel at times.


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post #7 of 18 Old 04-08-2014, 02:29 PM Thread Starter
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I just checked AqAdvisor. I had forgotten about that site. It says I am about 76% stocked but that I should add more filtration (I have a Hagen Fluval C4 for 70 gal).

So, will a hatchetfish fly out of the tank only when it sees a bug it wants to catch or will they just do it randomly for fun?


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post #8 of 18 Old 04-08-2014, 02:56 PM
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What are the dimensions of your tank? Must admit, looking at the figures from Aqadvisor, I think the tank may be lower than I assumed (blame the Angelfish ).

Hatchets tend to 'jump' both in the pursuit of food and as a defence mechanism. If they can get out of a tank and onto the floor, they will. My father used to have a fairly large group and had a 1inch dia. hole in his cover glasses, they found it!
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post #9 of 18 Old 04-08-2014, 03:01 PM Thread Starter
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My tank is 48" x 12" x 24"

Yeah, I guess hatchetfish and silver dollars are out. I also just read that silver dollars would eat all my plants. so, nevermind!


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post #10 of 18 Old 04-08-2014, 03:11 PM
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Assuming the 12" is front to back (rather than top to bottom) then Aqadvisor has you at 106% stocked otherwise you are way too low for an adult Angelfish .

I would say that Hatchets, particularly as you have an open top, are out. I wouldn't risk it as I think you will just end up picking them up off the floor. That is my personal opinion but that is one of the joys of this hobby as there are numerous grey areas, far more than are set out in black and white.
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