acceptable current for Sturiosoma festivum - Temp effect??

Bas Pels · Post by **Bas Pels** » 19 Oct 2007, 12:46

yesterday my Sturiosoma have spawmed again, this time on a rock measuring 20 * 10 cm.

For the first time I have the option of remouving the eggs, with the stone, a day before hatching - thus wednesday tomorrow.

I only have 1 tank available for them 60 * 30 * 30 cm, or 2 * 1 * 1 feet. Size will not be the problem, but the fry needs current.

I do have powerhead (5) for 2000 l/hr, but not smaller. The tank conatins 54 l, so I would blow the water arond 20 times an hour

Would this still be acceptable?

Naturally, I will fill the tank with water from the large tank, and keep the eggs submerged at all times etc etc

apistomaster · Post by **apistomaster** » 19 Oct 2007, 14:19

Hi Bas,
I think your planned starter tank will have sufficient current but I would recommend retaining the newly hatched fry in a more confined area like a net breeder for their first two weeks post hatch. This helps keep them in close proximity with their food and they should have doubled their length by the end of two weeks.
I have had the best success feeding them earthworm sticks rather than algae or vegetables.
This is what has been working for me. Congratulations and good luck.

Bas Pels · Post by **Bas Pels** » 19 Oct 2007, 15:43

Thanks

I might be able to fit a net in, and after the fry hatch, remove the stone (2 kilos, 4 pounds) pull the whole up.

I never saw earthworm pellets offered in Europe, but I might use Tetra tabimin. That is tabletted teramin, and I have 4 other furmulas of tabletted food

Line · Post by **Line** » 19 Oct 2007, 22:25

Hello

If I'm not to tired...

I do have powerhead (5) for 2000 l/hr, but not smaller. The tank conatins 54 l, so I would blow the water arond 20 times an hour

then I would claim, this makes a 37 times an hour.....

Best regards
Line

Bas Pels · Post by **Bas Pels** » 19 Oct 2007, 23:05

eh

You are right

anyway, it would still be quite a lot of current

apistomaster · Post by **apistomaster** » 20 Oct 2007, 04:29

The idea is to simulate a fast moving stream and Bas' set up will do nicely.

Bas Pels · Post by **Bas Pels** » 20 Oct 2007, 14:03

I just installed the whole - to try it all out.

Actually, 2000 l/hr in a 54 l tank does not even look like a lot

Before I installed I heard sombodyt mentionig on Discovery "6 km / hr current' - that is 10.000 the content in an hour. So my 37 is nothing indeed

Bas Pels · Post by **Bas Pels** » 20 Oct 2007, 18:38

As could be expected, the temp. is sarting to increase - I use 32 watts for the watermovement, and the tank is in a warm room (25 degrees+).

Now I think I have 2 obtions: Leave it this way - perhaps the fry likes 28-30 degrees, or take the whole ouyt of the warm room, and get a resulting 24 -25 degrees.

What would be best?

Bas Pels · Post by **Bas Pels** » 24 Oct 2007, 13:04

An hour back I remouved the rock, 6 days and 4 hrs after the eggs were deposited (I cought themn in the act at 9:37 hr, remouved them at 13:15)

However, a few eggs already hatched, and I've seen at least 4 fry (6-7 mm) swiming around in the parrents tank. I hope they manage to survive. The water is 25-26 degrees C

Most likely I will be able to replace the big rock in a few hrs, and than I can give them a few little rocks which are supposed to contain algae, but I've not seen a single hint of green (5 days under water, but too little sun)

Tomorrow I'll give them some pellted food

apistomaster · Post by **apistomaster** » 24 Oct 2007, 17:11

Hi Bas,
I have found the range of 27C to 30C to be a suitable temp for raising the Sturisoma fry.
You might consider using an in-line pump instead of a submersed pump to minimize heat transfer. There are many small units that would work for this purpose. I use MagDrive and QuietOne which are widely available in the USA. Eheim makes some good pumps that will work in the in-line configuration if the temperature control becomes too great a problem. The MagDrive power heads will also work in an in-line configuration.

I usually see the fry begin to feed on the third or forth days post hatch if they have visible yolks upon first hatching.

I don't know who sells them but I do know there is a source in the UK for earth worm sticks. I get them myself from a professional aquaculture supply business.
They are used primarily as a conditioning food for channel catfish and Tilapia brood stock.

Bas Pels · Post by **Bas Pels** » 24 Oct 2007, 19:27

Thanks, Larry

The trademarks you mention are unknown to me, but we know the USA stuff is quite often not available on the other side of the pond - and vice versa.

However, I would not even name any in-line pumps used in aquariums here. However, the temp equilibriated nicely at 26 degrees at their current place (I moved them down) so temp is OK.

Thank you for the info regarding the 3 waiting days. They do have quite a lot of yolk

cloudies · Post by **cloudies** » 25 Oct 2007, 10:30

Hi Bas,

Hope your Sturiosoma fry will grow well, if they become as large and beautifull as the one that protected the eggs... Really nice fish!

Thanks again for showing me your tanks and speak to you again soon.

Regards Jordan