Oscar growth rate

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turtle lover replied the topic: Oscar growth rate

silver dollars, pleco, striped raphael catfish. I plan to transfer some to a new tank.
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Darth Nandopsis replied the topic: Oscar growth rate

Intake of protein is one factor in size/growth rate of cichlids, but growth rate in an enclosed system like an aquarium is dependent upon & directly correlated to frequency & volume of water changes....fish expel a growth inhibiting hormone into the water......the only way to dilute this is frequent massive WC's......that being stated, a few questions:

1) what size tank?

2) How much volume & how often were you performing partial water changes?

3) How much protein is in the diet?

THOSE WHO REFUSE KNOWLEDGE ARE DOOMED TO FAIL.

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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turtle lover replied the topic: Oscar growth rate

Darth Nandopsis wrote: Intake of protein is one factor in size/growth rate of cichlids, but growth rate in an enclosed system like an aquarium is dependent upon & directly correlated to frequency & volume of water changes....fish expel a growth inhibiting hormone into the water......the only way to dilute this is frequent massive WC's......that being stated, a few questions:

1) what size tank?

2) How much volume & how often were you performing partial water changes?

3) How much protein is in the diet?

1. 75 gallons
2. around 10% per week
3. How do I calculate that
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UNC-CH replied the topic: Oscar growth rate

You're changing 10% of the water a week? There's your problem with growth. I have to change 50% every 5 days or nitrates will get out of control ... that's with an 8-9" oscar in a 75 gallon with no other fish. His growth was likely stunted early on because of bad water conditions but after 16 months he's still growing with 50% regular water changes.

Have you tested the nitrate level? What test kit do you have?
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Rocksor replied the topic: Oscar growth rate

Yeah that 10% is going to be an issue.
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turtle lover replied the topic: Oscar growth rate

So, if i change by 50%, oscar will grow more right??? or it is permanent???
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Lammergeier replied the topic: Oscar growth rate

Probably somewhere in-between. To be blunt, you needed to be keeping track of your nitrates and keeping them below 20ppm to give your oscar any real shot at reaching his or her's true potential size. It's probably too late for that now, but if you up the w/cs to at least 50% once per week (though imo you should be doing enough to keep nitrates <10ppm, so 75% per week or more) you should see your O's growth rate increase.

That said, your oscar will probably never reach the 12" that these fish are capable of. It's been an awfully long time to keep your O with sub-par water conditions imo.
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UNC-CH replied the topic: Oscar growth rate

In my case at least, once I started changing the water more often, he kept growing at about the same rate even after the first year. I had thought that growth normally slows down after a year. After having him for a year, he was 7". Now it's 4 months later and he's close to 9". Before, I had been changing 50% every 3-4 weeks for the first ?6-8 months? (not really sure how long before the members here taught me about the needed w/c frequency).

So, it seems that mine is making up for lost time with growth in the second year that he missed in the first. At least, that's my best guess.
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Suprd71 replied the topic: Oscar growth rate

Am I correct in that you have turtles with your Oscar? Thats a big no-no to begin with. Turtles are a monstrous strain on bio load, should never be kept with cichlids. A turtle will destroy water quality on its own, regardless of other fish.


I may not be the Boss, but I'm ALWAYS right!
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turtle lover replied the topic: Oscar growth rate

Nope, my turtles have always been in my pond eating vegetables and fish food. :P
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