Takes for ever for my Umbee to grow

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that_fish_Guy

that_fish_Guy

Peacock Bass
MFK Member
Jul 29, 2013
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Here is a little update on my Mag X umbee. They have been eating really well and getting very fat lol XD. Thing is it has taken them f-o-r-e-v-e-r to grow. They are all in a 145 gallon I have about 8 left out of like the 25-30 I originally had. Here is some pics. I can't tell male or female yet but here is one of them
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They are defiantly little beasts. They don't look like it but they are reaching 5 inches.


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How often & how much volume each time do you do when you perform partial water changes? How much protein in the diet?
 
I do 50% on Sunday and 25% Wednesday
I feed hikari bio gold, hikari staple , and grand sumo advanced growth formula and a smaller amount of dried krill every day twice to 3 times a day generously.
and market shrimp on Fridays

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maybe they get no sunlight and their water not warm enough
 
I would increase your water changes. There was a study of goldfish releasing pheromones under stressful conditions and that it reduced their growth rate. I would imagine other fish can do this as well. Any chance you can put one of them in a tank by itself and see if you see improvement in growth for that individual?
 
I'm doing an experiment at the moment where I'm growing out Tilapia zilli and Nimbochromis livingstoni.
When I received them, I placed 7 Tilapia and 4 Nimbochromis in one tank, and moved one individual Tilapia and 1 Nimbochromis (they were all about the same size in the beginning, siblings from same Tilapia spawn, and siblings from Nimbochromis spawn) in a different community tank with 9 Ptychochromis and some catfish.
They are all fed the same amounts and kinds of of foods, get the same water changes, same temp and filtration, and both tanks have the same fish population density, each tank is filled to approximately 100 gallons.
The tank where the lone individuals are growing out, both the Tilapia and Nimbochromis are almost double the size of the ones in the group tank growing out together.
The only difference in tanks, is the "group tank" is closer to a window, and gets slightly more sun.
The loner Tilapia

I realize it's hard to judge size by photos, but I believe the more robust size of the loner is obvious.
The ones growing up together

The loner Nimbochromis

one of the individuals from the group tank below

By the way, this is what they looked like back when i got them in March, at around 1"
 
Keep the one you want to keep & re-home the rest. Umbees need TONS of room, as males get well over 2' in length (eventually you will have to purchase a MUCH larger aquarium just for one) & you will need to increase the volume of your water changes,75% each time.
 
Darth Nandopsis said:
Keep the one you want to keep & re-home the rest. Umbees need TONS of room, as males get well over 2' in length (eventually you will have to purchase a MUCH larger aquarium just for one) & you will need to increase the volume of your water changes,75% each time.
Click to expand...

I know that man. This isn't my first rodeo. I am not an expert but I'm very very far from a newbie. And yes I was planning to keep only one from the start however I wanted to grow them out to choose the best of the batch. And I know to an ADULT umbee a 145 gallon is a puddle but to a juvinile umbee an 145 is far MORE than sufficient. I have plenty of space for the future even if I wanted to keep all of them I have plenty of room and options so no worries there. I think I will seperate them into different tanks and continue growing them out.
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