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Growing Seahorses – newborn to 1 year old

Newly born seahorses

1 day old fry

Fry eating their first meal

Seahorse 1 week old

Seahorse at 1 week old

Seahorses at 2 weeks old

2 week old fry fighting over bbs

2 week old seahorse up close

Seahorse at 3 weeks old

3 week old seahorses

Seahorse 4 weeks old

Weaned 4 week old

4 week next to 12 week

12 week / 3 month old seahorse

4 month old seahorses

5 month old seahorses - can you tell which is female?

5 month old males growing pouches

7 month old male growing a pouch late

8 month old male with full pouch

9 month old H.Barbouri male

9 month old hybrid growing pouch very late

1 year old female cheryl

1 year old male

1 year old female

Newly born seahorses

Newborn seahorses are almost clear and all look like miniature duplicates of their parents

1 day old fry

A new born up close, having his or her first meal

Fry eating their first meal

Newborns need enriched baby artemia to help them grow 

Seahorse 1 week old

You can see the orange artemia within a young seahorse's stomach!

Seahorse at 1 week old

This young seahorse has eaten well! 

Seahorses at 2 weeks old

They start to take on different colors, but they too will change in time based on surroundings

2 week old fry fighting over bbs

Even young seahorse do not play when it comes to food!

2 week old seahorse up close

A close up of a 2 week old seahorse

Seahorse at 3 weeks old

I still have yet to figure out why some grow the appendages (cirri) as this seahorse did, but it sure is cool!

3 week old seahorses

Around 3 weeks old, the seahorses start to look less transparent.

Seahorse 4 weeks old

From my batch of whities, this little one is beginning to look more like a seahorse.  By 4-6 weeks old, seahorses should be weaned onto frozen foods

Weaned 4 week old

A 4 week old coming to grab a random piece of mysis

4 week next to 12 week

This picture shows how much they grow in a few short months!

12 week / 3 month old seahorse

At 12 weeks (3 months) the seahorse is fully weaned onto frozen and needs much less supervision.

4 month old seahorses

At 4 months old, we sometimes cannot see the sex of the seahorse, but they certainly seem to start taking interest in certain other seahorses!

5 month old seahorses - can you tell which is female?

Can you tell which seahorse is female?  Only 1 is 🙂

5 month old males growing pouches

2 males are disappointed to see neither are female

7 month old male growing a pouch late

The faint dark spot between anal fin and tail shows the start of a pouch

8 month old male with full pouch

At 8 months old, most males are clearly indicated by their pouch.

9 month old H.Barbouri male

Different species like this hippocampus barbouri might have a different overall shape, but males always have the pouch to carry young.

9 month old hybrid growing pouch very late

This 9 month old hippocampus erectus-reidi hybrid fooled me for a while by waiting until very late to grow his pouch

1 year old female cheryl

By 1 year old, a female is easy to pick out.

1 year old male

Males at 1 year old are also quite easy to distinguish from females.

1 year old female

Little Cheryl at 1 year old.  This was my first seahorse to grow from fry to breeder in my care.  She's given me many beautiful babies!

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