Oscar in 40 gal breeder

I had them read this thread so they could see what others think. Now they're talking about getting rid of the oscar because the wife doesn't want a bigger tank.
There are always plenty of other choices. Hope the oscar ends up in a good home. Maybe on behalf of the co-worker's, make a Classified Ad thread here for the oscar's rehoming?:)
 
How big is it now?

One issue is that when people don't understand the needs of the fish it is not the tank size that is doing the harm, but the water quality. Most likely their nitrates are through the roof, as well as many other harmful chemicals. Any signs of HLLE?

Is there any evidence at all that a fish's organs and internal tissues will keep growing if stunted? That makes no sense biologically. Cells and tissues naturally will not exceed their space unless they are cancerous. I have heard this over and over and not once come across anything that explains it. If there is information out there I am not aware of I would be happy to read about it.

Oscars do not commonly reach 18". They can, but I have not come across hard facts of one doing it, just heard from someone who had one and things like that. I would consider 15" to be the expected size.
 
He seems pretty healthy, though I don't know the water parameters because I've never tested theirs. He is every bit of a foot long now. I'm going to check with them periodically and see if they seriously want to get rid of him and I would help them find a home somewhere here in Chicago preferably. I'll post again if necessary, thanks again.
 
I have a 10-11" O in a 45g with a Pleco, and he is fine, it is recommended that each Oscar has about 45G to himself. With a pleco not moving around much I think it's ok. I also don't have space for him anywhere else. :T
 
Be careful with per fish ratings. They usually refer to setups like a 300 with many oscars. Considering that they can hit 15" or so, they need a tank over a foot wide. This puts them in a tank 18" wide. A 75 is generally considered the minimum for one or two. 'Fine for now' and an ideal permanent setup can be two very different things.

What is the nitrate concentration in the 45?
 
I have a 10-11" O in a 45g with a Pleco, and he is fine, it is recommended that each Oscar has about 45G to himself. With a pleco not moving around much I think it's ok. I also don't have space for him anywhere else. :T

just to comment in terms of the general reccomendation as to space for Oscars; I would understand that in fact 55 gallon bare mimum is probably a more widely held belief.
 
a 40 breeder has more "flloorspace" than a 55g. although its a foot shorter in length, its 6 inches longer in width


i never seen an 18inch oscar but maybe in the wild this can occur. anyways i think a 40gbreeder may be ok but its definitely not optimal
 
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