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Neon Rainbowfish, Melanotaenia praecox

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just curious has anyone breed these? can they give me some tips going to set up a tank within the next couple weeks to breed a LARGE group for a planted tank.

thanks

  • Author

awesome whats the best way as Ive read numerous different contradicting articles on them. 2 males 4 females? lots of java moss or have a plastic grid which eggs fall through. how did you start your infusoria? cheers

I have copied and pasted a few comments I have made about breeding in the past. Sorry if its repeated. LOL

They spawn into mops or clumps of moss suspended just below water surface.

Feed up on live foods and do coldwater changes. Gets mine going every time.

They spawn in the morning. Eggs are very adhesive. Remove mop daily and place into seperate fry tank, replacing with another mop as the fish spawn over a few days. I have four mops used in rotation.

Fry are tiny and require micro sized food. I feed green water and infusoria. Moving up to decap BS and microworms.

Daphnia are great for feeding. Rainbows do like a bit of greenery in their diet also. I fed Wolfia.

Just remember, small fish mean small fry with tiny bellies. You will need to feed them microscopic infusoria, so have plenty available.

I have had success with 1 male 2 female. With larger Rainbows I have used 1 male 1 female , and also a larger group. All successful.

Make some mops out of synthetic wool. Buy it at $2 type shops or Redshed.

Wrap around a book about 20-40 times. Cut at one end and tie in middle.

Easy.

I feed it initially as an extra that was in my daphnia pond. I was watching the Rainbows and found they would eat the Daphnia first then eat the Wolffia as well. Just to clarify. The Wlfia and daphnia are feed t the Audults during conditioning. Its too big for the fry wh need microscopic foods like infusria or greenwater.

I found what I think are neon rainbow fry in with some guppy fry. I dont know how they could have gotten in there. Very very tiny but I cant think what else they could be.

They make 10 day old guppy fry look like monsters.

fry.jpg

Only way I think they could have ended up in there is if some duckweed had eggs on it and transferred over through the net.

Seriously the smallest free swimming fry I have even seen.

  • 2 weeks later...

They are about 4 weeks old now, starting to show some of that nice neon colour. Still tiny although they eat like its their last meal. Only just starting taking microworms, bbs and small daphnia. I've been feeding them infusoria, egg yolk and jbl novofry 1 and they pick at the spounge filter all day.

Im going to remove a few of the floating plants and stems from the tank the parents are in today and hope the same thing happens. They spawn all the time but finding the fertilised eggs isnt an easy task in a large community tank. I got this batch by luck, added indian fern to the guppy grow out tank and didnt notice them until a week later.

Yes dirty Glass! :oops: but the fry find things to eat on it as well as its for the ramshorns to feed my puffer.

DSCF0253.jpg

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