Will it kill them?! Dwarf Otos
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Old 05-05-2013, 09:13 AM   #1
sub-80
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Will it kill them?! Dwarf Otos


Hello;

I have had some Otos die on me when I placed them in my shrimp tank. And it was most likely due to the pH fluctuating from 7.4 to 6.8 in 3 days but I have increased the GH to 9 so now the pH is 7.82 and goes down to 7.65 by the end of the day and back up to 7.8. So is this fine or will it kill them? :what:
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Old 05-05-2013, 12:01 PM   #2
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Changing GH will not have any effect on pH. Are you perhaps thinking of kH?

Otos can be quite sensitive at first, but if they are properly acclimatized, they should do well.
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Old 05-05-2013, 12:06 PM   #3
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What are dwarf otos?
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Old 05-05-2013, 01:29 PM   #4
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Are you calling them "dwarf" or were they sold as such? havent seen such species for years...
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Old 05-05-2013, 02:12 PM   #5
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I've seen them sold as dwarf otos, but all these were just babies with a fancy label.
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Old 05-05-2013, 04:24 PM   #6
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am calling them dwarf otos is because an android app "Tropical Fish guide pocket edition" calls them such. I assumed that when people called them otos is just because they were familiar of them.

Iam using crushed coral to raise my ph gh and kh: 7.8, 9dH, 4dH, respectively. I heard that as the gh increase the affects of the co2 on the ph reduces. Is that wrong?

Than is it that the crushed coral is controlling the ph?
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Old 05-05-2013, 05:08 PM   #7
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what kind of shrimp and what type of substrate are you using? if its a buffer substrate it might just be easier to change out the sub as it will always cause swings.
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Old 05-05-2013, 05:17 PM   #8
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Default Re: Will it kill them?! Dwarf Otos

Quote:
Originally Posted by wicca27 View Post
what kind of shrimp and what type of substrate are you using? if its a buffer substrate it might just be easier to change out the sub as it will always cause swings.
Red cherry and amano shrimp. Had 12 red cherry and 4 amano but now only can find 4 red cherry. I removed everything and i only can 4. :banghead: Fluvial shrimp substrate
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Old 05-05-2013, 05:36 PM   #9
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Otos often times die when you first buy them.

They typically have a death sentence from being caught/shipped but sometimes they live long enough to make it to your tank and then die.

So there may or may not be anything wrong with your tank.

The best bet with Otos is to make sure that they have been in the fish store and alive for a month or more rather than getting ones that just arrived to the store.
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Old 05-05-2013, 05:57 PM   #10
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ah I just bought 4 they arrived today. NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!
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Old 05-05-2013, 07:45 PM   #11
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ur ph is 7.8? if so....thats too high for otos. i wouldnt go any higher than 7.4. i push them at 7.4 myself and they hold well and actually breed better. any higher...thwn things deteriorate.
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Old 05-05-2013, 09:45 PM   #12
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i would look for an inert substrate like gravel or pool filter sand. all your doing is fighting your substrate. shrimp stratum is made to buffer and lower the ph. so you will get lots of swings. im betting the loss of both shrimp and fish is due to stress and ph swings.
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Old 05-06-2013, 04:53 AM   #13
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Default Re: Will it kill them?! Dwarf Otos

I knew that was the cause for pH swing. I was using miko powder which raises the GH to 3-4, kh to 1-2 and pH 7.4. So when I add co2 the pH swings from 7.4 to 6.8 in three days. That is why I added crushed coral. Now GH is 9, kg is 4 and pH is 7.8. The pH swings from 7.8 to 7.6.

The fluvial substrate tries to stabilize the pH at 6.5. Will remove the co2 and coral when the plants have grown well.
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