Danio Fry 1 inch per gallon rule - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 04-13-2014, 11:08 PM Thread Starter
Danio Fry 1 inch per gallon rule

I think I'm overstocking this cup. About 30 3-4mm fish in a 500ml cup. That's about 4 inches of fish in a cup. I don't have a heater or filter either.... No baby deaths yet. Vacuumed these guys out of my tank during a water change. Feeding on powdered flake and boiled egg yolk. Shaken, not stirred . This is my first shot at raising these little guys. Any suggestions or lessons learned would be appreciated!
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55 Gallon Fluval 48x12x20{3 Angelfish, 9 Harlequin Rasboras, 7 Gold Barbs, 6 Buenos Aires Tetras, 1 Red Tailed Black Shark, 1 Paradise Gourami }

33 Gallon Hagen 36x12x18 {1 male blue Ram, 1 female electric blue Ram, some Danios}

16 Gallon Aqueon Bow Front 20x13x18 {Pair of Breeding Angelfish }

Aqueon Evolve 4 {1 Male Red Betta}

Last edited by Crazyfish; 04-13-2014 at 11:12 PM.
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post #2 of 5 Old 04-23-2014, 05:26 AM
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I have not raised fry, but here's a bump so maybe someone else might chime in. Good luck.
They are so tiny!

Keep Smiling~Carole

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post #3 of 5 Old 04-23-2014, 08:55 AM
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The inch per gallon guideline is for beginners, keeps them from overstocking. It's nice to start out in fishkjeeping with as few problems as possible, an inch of slim bodied fish that grow to no more than 3" per gallon of water is easy to remember. All the new things that need to be remembered when starting out can be overwhelming, this guideline is an attempt at simplifying it.

If you're breeding you're a step beyond beginner. Many people as they advance go well beyond the inch per gallon deal, sometime 2-3 times beyond. That guideline doesn't apply in your situation. With fry you'll want to change 50% of the water a few times weekly for the first 2-3 weeks, back off a bit after that, soon you'll be putting them in a larger tank.
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post #4 of 5 Old 04-24-2014, 12:04 PM
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My only experience with fry was with winter flounder back in grad school, but we used a much higher density than this with no problems. We could push it a bit further because the water temperature was so low (4 C) -- these were *winter* flounder, after all, and they spawn late December - early March in the Eastern US. But even so I think you'll be fine. Just keep up the water changes, and make sure they don't have uneaten food lying around.
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post #5 of 5 Old 05-04-2014, 02:43 AM Thread Starter
Well, I had a bright idea of putting them in the tank with a breeder net box and they were doing well until the dwarf gourami figured out that he could suck them out through the net when they were swimming by the edges near the mesh.... DOH! I got another batch and they are about 2 weeks old now and growing well.

55 Gallon Fluval 48x12x20{3 Angelfish, 9 Harlequin Rasboras, 7 Gold Barbs, 6 Buenos Aires Tetras, 1 Red Tailed Black Shark, 1 Paradise Gourami }

33 Gallon Hagen 36x12x18 {1 male blue Ram, 1 female electric blue Ram, some Danios}

16 Gallon Aqueon Bow Front 20x13x18 {Pair of Breeding Angelfish }

Aqueon Evolve 4 {1 Male Red Betta}
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