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 Setting up for Hara jerdoni.

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Deb
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PostSubject: Setting up for Hara jerdoni.   Wed Feb 22, 2012 1:57 pm

First topic message reminder :

Here's my latest project. I have a ten gallon tank which has been running for seven years. When Ben was here taking all the fish out of it a few weeks ago, I told him the tank was coming down.

So for a few days it just sat there all forlorn with only the black sand and some floating brown dust. Obviously I don't have enough to do *lol* because I got the idea to take out some of the Cryptocoryne from the 20 high and plant it in the 10 gallon. The 10 G was starting to look good again. I decided to set it up as a species tank for Hara jerdoni.

Hara jerdoni is a species of tiny Indian catfish which goes by the common name of mini moth or stone catfish.
This pic shows one in my 29 gallon tank.


Hara jerdoni
That pic is a few months old because the 29 G is now history and all the Hara are in the 75, where I can't see them!
That's what decided me to set up a new tank for them.

So far there's about 2.5 inches of Tahitian Moon Black Sand, three large Cryptocoryne wendtii (green) plants, two small pieces of wood planted with sprigs of Java fern, and a big piece of wood at the back shaped like a T-rex.
I don't know why it's important to mention the shape - it just is. *lol*

I have taken new pix of this set-up and will get them on-line soon. Very Happy

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PostSubject: Re: Setting up for Hara jerdoni.   Thu Aug 30, 2012 5:57 pm

Thank you, Liz!

Here's something interesting. This photo shows the specialized structures known as the posterior processes of the coracoids, or the post-coracoid processes. Hara, and other Sisorid species, have them in varying degrees depending on how much time they spend hugging the substrate as opposed to swimming.



Some scientists theorize that the processes (actually a bony pelvic girdle) help the catfishes stay the right way up on the bottom. Hara jerdoni, my catfish, do spend a lot of time on the substrate which may account for how well-developed their internal structures are.

Btw, this photo of the skeleton was obtained after one of my Hara died suddenly, presumably from eating blackworms. Crying or Very sad

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PostSubject: Re: Setting up for Hara jerdoni.   Tue Sep 11, 2012 12:35 pm

Okay, enough science. Wink

Since losing some fish from this tank back in July, I've been able to add three more Celestial Pearl Danios. They are from Azalea Aquariums and cost about $8/each. A bit pricey maybe but that's what they cost. This brings the group back up to five.

These new three are very small, so they must be juveniles. As far as behavior, they are far bolder than my surviving two, and come out more often. This encourages the reclusive ones to come on out, too, so for the first time all five CPDs can be seen swimming all over the tank. They do much better in a group. Very Happy

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PostSubject: Re: Setting up for Hara jerdoni.   Tue Sep 11, 2012 4:23 pm

CPDs have been a favorite of mine. Anything else interesting at Azalea? They posted a pic of a Red Chilli Asian Arowana today on Facebook.

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PostSubject: Re: Setting up for Hara jerdoni.   Thu Sep 13, 2012 6:23 pm

Azalea always has something interesting, IMO. On the day I went they had a lot of things I really wanted. There was a batch of really good-looking Corydoras trilineatus, also priced kind of high, and jade-eye rasbora. One tank had various color variations of the nerite snail, Neritina turrita. Very nice!

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PostSubject: Re: Setting up for Hara jerdoni.   Thu Sep 13, 2012 8:13 pm

I'll be glad when I can go again.

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PostSubject: Re: Setting up for Hara jerdoni.   Mon Oct 01, 2012 8:37 pm

Here are a couple of the cherry red shrimps that were moved from the shrimp bowl to this tank back in the middle of August.

Neocaridina heteropoda.

In the bowl, they appeared to be clear with hints of red. After only a few hours in this tank, they became bright red. Cool, no?

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PostSubject: Re: Setting up for Hara jerdoni.   Tue Oct 02, 2012 12:49 pm

Very cool!
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PostSubject: Re: Setting up for Hara jerdoni.   Sat Nov 17, 2012 7:05 pm

There is some bad news.
Several of my Hara jerdoni have died suddenly. Sad

Here is the timeline:
October 7 (week of) - the heater quits working. I don't notice for about a week because it's not really cold out, yet. The temps hover at around 70-72 dF, which is fine for these fish.
October 14 (week of) - it's getting colder at night and now I see that the temps are down to 68 dF. This is when I check the heater and realize it's not working to capacity.
October 18 - the heater is replaced with a new one.
October 21 - I notice two dead Hara in the tank. One is a mere shred, the other is decrepit and the entire tail fin and peduncle are missing. Both have been dead more than a day, judging by the remains. By the end of the day a third dead body floats up.
October 22 - another dead one, bringing the total recognizable dead to four.

There were other unusual remains in the tank but all the other fish and shrimps were accounted for.

Today, a couple of weeks later, there are two Hara jerdoni remaining, and they seem fine! Chubby, eating, active. They appear to be male and female, which is interesting. I do not know what overtook the four that died, but no further incident has occurred.

Here is a front view of the tank, taken a few weeks before the disaster.

The plants are Cryptocoryne wendtii (green) and are even taller now.

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PostSubject: Re: Setting up for Hara jerdoni.   Sun Nov 18, 2012 8:20 am

looks good! I didn't know that crypt got so big.
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PostSubject: Re: Setting up for Hara jerdoni.   Sun Nov 18, 2012 9:19 am

I'm so sorry about the losses, Deb. I guess the heater failure is the only explanation - how old were they, approximately?

I had a similar heater failure on several of my tanks this fall. My tanks hover close to 80 in the summer, even with AC in the house, so I don't have the heaters plugged in at all, but when the evenings started getting cooler I plug them in and observe closely until I get the settings right.

In two tanks the temperature just would not budge, and when I checked the heaters they were not working at all.

This is unusual, in my experience, but a preferred heater failure to the "usual" way heaters go bad - by never turning off and cooking the fish. Maybe they're engineered better now.

Even so, with a sensitive species a drop in temp like that can stress them enough to weaken them.


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PostSubject: Re: Setting up for Hara jerdoni.   Sun Nov 18, 2012 12:59 pm

Thanks, Liz. They were about fourteen or fifteen months old. I hate to think just a few days at 68 dF could cause all this trouble. They live in low tropical temps in the wild. 68 is the bottom of their temp range.

I tested the failed heater in a bucket of water. It managed to heat 2.5 gallons of water okay, but not the 10 gallon tank. So, it's working marginally. I will send it back to Marineland.

Ryland wrote:
looks good! I didn't know that crypt got so big.
Ryland, the variety I have grows to about 12"-14" tall.

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PostSubject: Re: Setting up for Hara jerdoni.   Sun Nov 18, 2012 5:55 pm

Sorry Deb.

What do you mean by unusual remains?

I've had two Marineland Visi-Therm heaters stop working for me. I now use Eheim Jager heaters. No worries for some time now.

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PostSubject: Re: Setting up for Hara jerdoni.   Sun Nov 18, 2012 6:01 pm

Deb, I'm sorry to read this update.....

I suppose the heater failure is the only logical reason for the losses.


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PostSubject: Re: Setting up for Hara jerdoni.   Sun Nov 18, 2012 6:51 pm

@Donald wrote:
... What do you mean by unusual remains? ...
Well, there were whitish clumps which appeared to have collected other debris. I think now that these were shrimp molts which had gathered plant debris and maybe some tiny bones as they rolled around the tank.
All the shrimps and the CPDs were accounted for, none dead, so it wasn't one of them.

gundog wrote:
I suppose the heater failure is the only logical reason for the losses.
I have to say it seems that way. Usually I don't have problems with heaters but over the years a few have had to be replaced. Marineland always sends me a new one if I send them the broken one. Very Happy

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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 10:31 am

Just an update post.

All of the shrimp in the bowl have now been moved to this tank. They are really enjoying the black sand and the extra room.

Worthy of mention is that today - for the first time - I actually SAW a female shrimp unloading her eggs. For such a tiny creature eggs are remarkably easy to see, being round and white.

She seemed to be rolling and cleaning them underneath her body. She moved off out of view so I have no idea what happens next. Unfortunately, I could not take a pic.
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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 11:19 am

Are those a Cryptocoryne sp. of plants? If so, which one? I recently received a couple of C. wendtii red as a gift. Right now they are crammed into a 10g. Assume they will need something larger pretty soon.

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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 11:24 am

Have you changed your livestock in that aquarium other than the shrimp?

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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 11:34 am

No, it's pretty much the same. Very Happy I've got seven celestial pearl danios now and the surviving Hara jerdoni. Marineland sent me a new heater, btw, no questions asked.
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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 11:42 am

Mine are C. wendtii (green). They are supposed to grow to about 12"-14" tall and mine have done that. The photo was taken last spring. Since then, more plants have been produced but the max height is holding where it is.

Would you say the red variety is significantly redder than the green? The leaves on mine are reddish (brownish-purple) underneath.
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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 11:58 am

At this point (3 weeks in the aquarium) they are red all over right down to the top of the roots. They were bought at Azalea. I've had red plants of different types before but the new growth always turns green. Something to do with not enough Fe I believe.

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PostSubject: Re: Setting up for Hara jerdoni.   Sat Jan 26, 2013 8:10 pm

Nice to hear about the updates Deb, how are those big beautiful wendtii doing?

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PostSubject: Re: Setting up for Hara jerdoni.   Sun Jan 27, 2013 8:08 am

wow, marineland has good customer service
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PostSubject: Re: Setting up for Hara jerdoni.   Sun Jan 27, 2013 10:47 am

I don't want to give the wrong impression and make it sound like Marineland heaters fail more than other heaters, but they do fail occasionally. When this happens, I save up a couple and send them off in a simple mailer with a letter explaining how they failed - i.e., failed to heat or overheated. I do this as a courtesy for their benefit; they don't ask you anything. There is a lifetime guarantee on Marineland heaters if they fail while in regular service. Very Happy
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PostSubject: Re: Setting up for Hara jerdoni.   Mon Jun 10, 2013 7:11 pm

@thegundog wrote:
Nice to hear about the updates Deb, how are those big beautiful wendtii doing?

I'll show you. Very Happy Here is a pic from the other day:


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PostSubject: Re: Setting up for Hara jerdoni.   Mon Jun 10, 2013 10:01 pm

OMG that is a beautiful group of wendtii, I love it Deb!

Any secrets to your green thumb that you care to share? Smile

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Setting up for Hara jerdoni.

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