Ornate Article in Aquarium Fish International..odd information??

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STONEDFISH

Feeder Fish
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Jul 19, 2005
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..in an octopus' garden in the shade:)
I have a subscription to Aquarium Fish International magazine, I always look forward to my new issue arriving. I find out lots of stuff about fish that I don't keep as they don't really cover monster fish too often.
My new issue has an article about the ornate polypterus, which I have. The information in the article is weird. It says that they need a ph of 8.4 and that the usually don't get over 8" in the home aquarium.
My ornate is well over a foot in my 55gal, and that tank really isn't even big enough for him anymore...So I assume when I upgrade in the next few months it will grow faster in the big tank.
Also my ph is around 6.5, and it hasn't seemed to bother any of the polys in there.... anyone else find the information odd, or am I just lucky to have a big ornate in water it shouldn't be in?
STNDFSH:nilly:
 
I'm not sure what PH they're naturally found in the wild but I do know they grow much larger than 8". And for most fish, PH doesn't really matter as long as they're properly acclimated to whatever PH your water has. Some fish do need a certain PH to breed but other than that PH doesn't really matter much.
 
Bad information in that article is all -Anne
 
Water chemistry
In their natural occuring range West and Central African rivers,lakes and swamps
bichirs are found in water conditions varying in pH values between 6.5 to almost 9.0.
And water hardness varying between2dH to almost 20dH.
And tempuratures ranging from mid 70'sF to mid 80'sF
with a dissolved oxygen content between 3.3 parts per 1000 by volume
and 2.50 parts per 1000 by volume.
3.3 parts per 1000 by volume is common in aqauria kept at 75 F
These water parameters will flucuate thruought the year as dry season gives
way to the rainy season and rivers rise and swamps flood often lowering water temps
for short peroids of time.As you can see they are tolerant of a wide range of water
conditions.
Brackish bichirs?
Bichirs are freshwater fish and, though some are found in rivers near where they empty into the ocean, the water they inhabit is fully fresh.
Polypterus ornatipinnis and Polypterus e.congicus are sometimes found in Lake Tanganyika which has hard, alkaline water but are rarely, if ever, found in the lake itself. Instead, they inhabit the swampy areas where river water empties into the lake proper.-Anne
 
beblondie;805021; said:
Water chemistry
In their natural occuring range West and Central African rivers,lakes and swamps
bichirs are found in water conditions varying in pH values between 6.5 to almost 9.0.
And water hardness varying between2dH to almost 20dH.
And tempuratures ranging from mid 70'sF to mid 80'sF
with a dissolved oxygen content between 3.3 parts per 1000 by volume
and 2.50 parts per 1000 by volume.
3.3 parts per 1000 by volume is common in aqauria kept at 75 F
These water parameters will flucuate thruought the year as dry season gives
way to the rainy season and rivers rise and swamps flood often lowering water temps
for short peroids of time.As you can see they are tolerant of a wide range of water
conditions.
Brackish bichirs?
Bichirs are freshwater fish and, though some are found in rivers near where they empty into the ocean, the water they inhabit is fully fresh.
Polypterus ornatipinnis and Polypterus e.congicus are sometimes found in Lake Tanganyika which has hard, alkaline water but are rarely, if ever, found in the lake itself. Instead, they inhabit the swampy areas where river water empties into the lake proper.-Anne
Click to expand...


Thank you.. I always read that they can tolerate a wide range of water parameters, even some that are toxic to other fish, because of their special "lung" apparatus.
STNDFSH
 
Unfortunatly info in articles and alot of textbooks is based on research from older textbooks.Basically just rehashing schechy info from brief observation 50 to 100 years ago.Pretty pathetic but thats the state of the hobby
 
What issue of AFI is that? I have a subscription (present from my daughter:) ) and have been dying to see some info on Poly's. Of course not something as obviously erroneous as 8" Ornates though.......

Odd, it usually quite a good mag:confused:

Oh well, all the good info is found here anyway!!:headbang2

O
 
AFI frequently posts alot of wrong information.
For example they say that alligator gars grow 24 to 30 inches, and that you can keep 2-3 alligator gars in a 80 gallon tank. Also many times the pics are the wrong species.
In this age of information, this bad info being published is unexcusable. :thumbsdow :thumbsdow two thumbs down
 
we need to write them and give them better info and tell them that we are upset to have a published magazine give bad info at all!!!
 
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