Size of tank for breeding?

  • noodle
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noodle created the topic: Size of tank for breeding?

I often hear people comment that they have half a dozen baby oscars and intend to let them grow out until a pair forms with the intention of breeding them. Most of the time the tank they mention is too small for 1 or 2 adult oscars, I assume that this is a death sentence for half a dozen young ones! I want to tell them that their tank looks nice but is too small, but I don't want to start that conversation and then not know how large their tank should be for when that inevitable question pops up.

I figure I ask the experts here, what size tank would one require for such an operation? Obviously the bigger the better, but what is considered the minimum?
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  • Darth Nandopsis
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Darth Nandopsis replied the topic: Size of tank for breeding?

Usually to obtain a pair the formula is get 6 babies & let them grow & pair off naturally, ensuring better odds of M/F ratio....based on the given formula of 55GL bare minimum for one Oscar, that's around 330GLS, but it's not inexpensive to purchase a 300GL+ aquarium, so I would state no less than 180GL, watch them closely over the next few months for signs of pairing, & when that occurs, be prepared to re-home the other 4.

A fully mature biological filter, frequent large-scale partial WC's,& powerful & efficient mechanical filtration would be a given.

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WATER CHANGES ARE THE LIFEBLOOD OF THIS HOBBY. IF YOU DON'T BELIEVE SO OR SIMPLY DON'T FEEL LIKE DOING THEM, RE-HOME YOUR FISH, SELL YOUR AQUARIUM & FIND ANOTHER HOBBY, AS YOU WILL FAIL UTTERLY, COMPLETELY, & MISERABLY.
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robham7770 replied the topic: Size of tank for breeding?

Definitely not an expert, but if the intention is to have a breeding pair, then a 125 would be bare minimum for the two fish. My understanding is that oscars are slow to pair off so a bigger tank is probably in orde(allow the fish to mature), unless the fish keeper gets really lucky. My only breeding experience is with ca cichlids, and the situation in a tank can turn on a dime.
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Suprd71 replied the topic: Size of tank for breeding?

I tried 6 many moons ago in a 5ft tank of about 100gals. Didnt last more than a few weeks, it was constant battle royale. Coulda had 6 males for all I know. I currently have a matched pair, about a foot long each in a 6ft 180g. No signs of any breeding rituals, and they are likely less than 2yrs old.


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DRACO replied the topic: Size of tank for breeding?

if it is breeding as your main intention, you need to look for a breeding size already, probably a pair as that...
getting a pair from several juvies is a hit and miss... and there is no assurance that they will accept each other...

i have had a chance of pair several times but i didn't give breeding serious consideration... i just want to keep them,
i was able to have eggs and fries every 2 weeks by shuttling 2 females alternately with one male...

a pair could spawn in a 90 gal tank provided you have good filtration and varied feeds. what you need is/are extra tank/s
as grow out, otherwise fingerlings will just kill each other as they grow if you don't have big tank for them...
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