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how many dicus in a 90 gallon aquarium
Hello. I am new to this forum and this is my first post. I am a young fish addict and have been keeping and breeding fish (mostly dwarf cichlids and angelfish) for quite a while. I Have finally made my mind up, and try my hand at keeping discus. how many can I keep in a 90 gallon bare bottom aquarium? thank you
Last edited by bens fish; 08-01-2014 at 08:35 PM.
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MVP Oct.2015
Re: how many dicus in a 90 gallon aquarium
In bare-bottom, up to 10 near adult, or adult, fish. Perhaps even a dozen or so.
You could keep many more young ones - juvies - probably double that amount, of say 3" fish, but you'd need to sell, re-home, or add another tank for some as they grew out
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Re: how many dicus in a 90 gallon aquarium
ok thanks. I will start looking for a group of 10 mid sized discus to grow out. if I buy say 3 inch fish would I have to put them in a grow out tank, and until what size should they be in the grow out?
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MVP Oct.2015
Re: how many dicus in a 90 gallon aquarium
If they're at least 3" or more and you get 10 - 12 of them, they'll be fine in your 100 gal. They can grow out well in there.
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Re: how many dicus in a 90 gallon aquarium
I would put 9 discus in a 90 gallon
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Re: how many dicus in a 90 gallon aquarium
Hi all, I know this is an old thread but I have just been told by someone that keeps,breeds, and sells Discus that you need at least 6 pr 100 ltrs.
I have just set up a 90 Gallon tank like the OP was saying about hoping to keep Discus.....but this person say's I would need at least 24 fish bare minimum....
What's your thoughts, should I give up with my idea of having a small shoal of 6 Discus, with around 30 tetras (of some sort not sure yet which), around 20 cories, bristle nose, and some "bit's n bobs"
in a "nice community" type set up.
Not looking to breed or anything, just want to keep healthy Discus in a beautiful tank if you know what I mean.
All and any comments welcome, good or bad.
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Re: how many dicus in a 90 gallon aquarium
I have fewer fish in my 220.
It’s all about pushing the envelope with live animals.
I don’t like to push the envelope so I keep a low census.
That bio load seems way too much to me but that’s my opinion.
There are no hard and fast rules, just how much you’re willing to risk.
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Silver Member
Re: how many dicus in a 90 gallon aquarium
24 in a 90 is a breeder who can’t get rid of his fish! At the most 9 but 7 would be better. He’s probably also saying one 30% water change a week. I’ve got 16 in a 180 and I’m pushing it.857F7AD6-D7A3-4125-A7B2-03FC3457B0AA.jpg
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Platinum Member
Re: how many dicus in a 90 gallon aquarium
I have found that one adult discus per 10 gallons is the concensus.
Experientally, that number has worked well for me.
So, at the most 9 (but I like pairs; so, say 10). That's max'ed out. 8 for safety.
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Re: how many dicus in a 90 gallon aquarium
Thank's for the comments
SO these "9" Discus will be quite small, probably around 2 1/2" to 3".
I don't have the room for grow out tanks so they will be going in the 90 Gallon tank at that size and grown on to adults
Would you all say they would be ok at that size, could there be problems like arguing more than usual, not growing the same, lost fish ect,ect ??
or do you think they really need a smaller tank until they are bigger (which means I couldn't afford to buy 9 fish in the 6"/8" range all in one go for a 90 Gal tank).
I will be setting up a hospital/quarantine tank but that will only be around 20 Gallons
Last edited by DaveB; 10-08-2022 at 01:07 AM.
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Silver Member
Re: how many dicus in a 90 gallon aquarium
Franks plan is a good plan. Keep up water changes and feed regularly. Next buy the biggest you can afford. 2-3” discus are a gamble. Buy from a sponsor of this site. Look back at the discus Pingco brings in. He’s got a site here. There can always be problems. So be prepared. Clean water is best and figure many water changes.
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