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Other hara's


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#1 mikev

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Posted 13 December 2006 - 08:22 PM

Hi,

I currently have Hara maesotensis and it appears that a couple of other Hara species will shortly become available around here.

Is there any information on them?

The species are (possibly misidentified, but the pictures show the actual fish)

Hara hara?

Hara horai?

What I'd like to know are the sizes of this fish, and if the keeping is the same as with Hara maesotensis?

TIA

#2 medaka

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Posted 14 December 2006 - 12:02 AM

A looks like Erethistes pussilus
& B is a pseudolagvia sp, could do with clearer pic for better i.d. on this one


Husbandry is the same for both, however , Pseudolaguvia species do not tolerate nitrates.!
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#3 mikev

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Posted 14 December 2006 - 04:37 PM

QUOTE(medaka @ Dec 13 2006, 08:02 PM) <{POST_SNAPBACK}>
A looks like Erethistes pussilus
& B is a pseudolagvia sp, could do with clearer pic for better i.d. on this one
Husbandry is the same for both, however , Pseudolaguvia species do not tolerate nitrates.!


Thanks a lot, I'll try to obtain a better photo.

What do you mean exactly with "do not tolerate nitrates"?

#4 Irene

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Posted 15 December 2006 - 05:50 PM

HI, Moth cats like good quality water or tend to shed their skin. I use lots of plants as these absorb things to help water qual, plus I read that they like plants. I have 3 E. pussillus (like your first pic) who are a couple of inches long and generally hang around in the plants. some moth cats stay small ,how big are yours ?

#5 mikev

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Posted 15 December 2006 - 06:58 PM

Still 1"-1.25", and I don't think they are into growing.

If E. pussillus can be 2", it is certainly intriguing....at 2" one can see the details much better.


On nitrates/water quality: yes, I'm aware of this. But it seems that Medaka implied that Pseudolaguvia need even purer water, so I wonder just how pure.... (If it means daily water changes, I'm not sure I can do this.)

#6 medaka

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Posted 16 December 2006 - 12:29 AM

QUOTE
Medaka implied that Pseudolaguvia need even purer water, so I wonder just how pure.... (If it means daily water changes, I'm not sure I can do this.)


I found that Pseudolaguvia shawi & Pseudolaguvia ribeiroi required better water quality than any of my Erethistini . I have found that Erethistini, would tolerate nitrates readings of 25mg/L for a few days, however;
all the Pseudolaguvia I have kept, tend not to tolerate for more than a day or so nitrates levels around 25mg/L or above, I have just lost a group of some 5 Pseudolaguvia shawi after keeping them alive for approx 3-4 years. ( It would be fair to say that on their tank, I carried out 15% water changes, every other day). earlier attempts at keeping these, carrying out my normal regime of water changes of every 5 days, met with poor results, I always tended to loose them after a few weeks, even with nitrate readings of 12.5 mg/L .

Can you keep us updated on how yours do, at a push I would hazard a quess that B is
Pseudolaguvia shawi

Also you may be interested in this article here on Scot Cat
Pseudolaguvia shawi
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#7 mikev

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Posted 16 December 2006 - 04:10 PM

Thanks a lot, medaka, this makes it much clearer.

QUOTE(medaka @ Dec 15 2006, 07:29 PM) <{POST_SNAPBACK}>
Can you keep us updated on how yours do


Hara maesotensis's seem to be ok. The water change regime has been 25% weekly, but it is an overplanted tank, so some nitrates go into plant growth and so far I was able to get away with a couple of missed water changes, like this week.

(Local policy: all water changes stop and I don't even open tanks if another tank in the room has a dangerous infection. Happens to be the case this week, some nasty things came with the newest fish....hope they can wait few more days.)

No breeding activities noticed, but it would not succeed since they are currently dithered by Rosy Loaches (these are small 1" species that looks a lot like Cherry Barbs, but is hungry all the time) and have a couple of Vannies in the tank too. No growth noticed either, they are probably maxed out

---

As for Pseudolaguvia, I don't have them; the seller is still quarantining them and treating with antibiotics (prevention -- most Indian Catfish arrives here seriously sick). Cannot see them for two weeks, and right now i don't feel brave enough to commit to this amount of water changes (there are 8 tanks here).

If you are sure this is simply the nitrAte matter, maybe there is a reasonable way to remove them in some other way (membranes?)... I'm going to ask around about this.

If I learn anything, or get Pseudolaguvia, I'll post back.

Thanks for the article link.

#8 mikev

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Posted 16 December 2006 - 04:24 PM

PS. One thought that occurred to me. Nitrate reaction may not be absolute, it may be different depending on the water hardness (TDS). Asaik, generally the UK has pretty hard water, here it is pretty soft. I could not find gH for your town on the net, what is it?

#9 medaka

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Posted 16 December 2006 - 07:23 PM

QUOTE
I could not find gH for your town on the net, what is it?


GH = 3 degree's or less, I have never known it to fluctuate to above 3 degree's.

The pH of the tap water is neutral, However; when left to stand for 24 hrs or more the pH drops to 6.
During the summer months, it has on occasion dropped as low as 5.5, : sad.gif
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#10 mikev

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Posted 16 December 2006 - 09:51 PM

So much for this idea.... gH of 3 is excellent.... Thanks.

(As for the dropping pH -- this is my curse here too. Loaches eat too much, buffering disappears too quickly, pH goes below 6.0, and to make it worse, if I forget to add the buffer, ammonia cleansing simply stops.)

#11 mikev

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Posted 17 December 2006 - 02:05 AM

Any reasons why not to use Seachem's Purigen?

It appears that it will keep the nitrates very low even with weekly water changes. I asked on LOL, and a couple of people who use it swear by it, one says that his nitrates are locked at 10. There ought to be something I'm missing here, but this does seem like a good solution.

#12 medaka

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Posted 17 December 2006 - 08:17 PM

QUOTE
Any reasons why not to use Seachem's Purigen?

I just stick to water changes.
Sorry sad.gif I have never used it,
My son asked "who was Elton John dad"?
I replied "He played keyboards son, for Marc Bolan"!

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#13 mikev

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Posted 17 December 2006 - 11:12 PM

It appears that it will provide the required degree of safety and I don't see how it can hurt. The price is reasonable. More water changes of course still would not hurt, probably will make the filter work longer.

(for ref: I've been asking on LOL, here, there is some info on the thread.)

OK, I've ordered a couple of packages just to try them. We'll see what happens.




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