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Thread: Harlequin rasboras jumpers? Reply to Thread
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Topic Review (Newest First)
10-09-2012 06:16 AM
vnghost well i noticed something interesting right now. lights on fish swim about happy, excited to see me thinking im gonna feed them. lights off my tank turns into fight club. neons doing the usual sparing for dominance but what was more interesting was the rummy nosed tetra i have in there. i have 2 and they are smaller than the harlequins but one is stocking them while lights off and seem only to be interested in the bottom fin. i think i found the real culprits. removing them as you read this.
10-09-2012 05:54 AM
Vincent Tran I used to have harlequins and the only time one jumped was when I was trying to net him out.. but I think that any fish/ shrimp can be a jumper.
10-09-2012 05:28 AM
sphack
Quote:
Originally Posted by vnghost View Post
heres water parameters.

ph 6.3 confirmed with digital ph pen.
ammonia 0
nitrite 0
nitrate 0
gh 12? i added ferts about an hour before test
kh 7

the fish seem perfectly fine now. i think it was just my co2 yesterday, noticed it was flying a little bit higher today, probably from when i accidently dropped the cylinder landed on the needle valve. turned it down, all fish are swimming happily and the harlequins are not shy at all. top stays on the tank until all variables are verified thanks.
0 nitrates an hour after ferts? What are you dosing for ferts?

I had a problem with my nitrate API test. If you don't shake the second bottle enough you can easily get a zero reading. After "shaking until my arm falls off" as some one suggested I started getting no3 readings.
10-09-2012 04:48 AM
vnghost hey thanks for the help
10-09-2012 04:30 AM
AVN Just a tiny bit acidic. Good job fixing the problem!
10-09-2012 04:30 AM
vnghost also should be noted my water ph is usually 7.2, now that i finally got a hang of this co2 thing its at 6.3. my other tank which is a low light no co2 tank is at 7.2 so your probably right maybe its the ph flux of the co2 or else way too much co2 that night it happened.
10-09-2012 04:27 AM
vnghost heres water parameters.

ph 6.3 confirmed with digital ph pen.
ammonia 0
nitrite 0
nitrate 0
gh 12? i added ferts about an hour before test
kh 7

the fish seem perfectly fine now. i think it was just my co2 yesterday, noticed it was flying a little bit higher today, probably from when i accidently dropped the cylinder landed on the needle valve. turned it down, all fish are swimming happily and the harlequins are not shy at all. top stays on the tank until all variables are verified thanks.
10-09-2012 02:52 AM
AVN
Quote:
Originally Posted by fusiongt View Post
Any fish can jump even if they're not known as jumpers. Just because they jump after months of not jumping doesn't necessarily mean somethings wrong with your water. I know sometimes I have to turn on nearby lights at night and my fish freak out and I wouldn't be surprised if they accidentally jumped.
Correct. But in this case it looks like a problem with his water quality.

Quote:
Originally Posted by vnghost View Post
they been in the tank for about 3 or 4 weeks now. and are alive and well this morning when i checked before i headed out. im thinking its the co2, it never bothered them before but i did take out half the plants in the tank recently so possibly co2 levels raised up with less plants uptaking co2? hopefully they are all fine when i get home. i put the glass top on the tank but it doesnt fit becuase of my intake out output tubes. the window screen is a good idea. thanks for the help
Do you mind posting water test results? I highly doubt excess C02 would make the water intolerable, as it would take a large amount of that to affect the breath-ability of the water. Perhaps the excess C02 has made your water too acidic?

Please do a full water test and post parameters. PH is the first place you should look.
10-09-2012 01:29 AM
vnghost they been in the tank for about 3 or 4 weeks now. and are alive and well this morning when i checked before i headed out. im thinking its the co2, it never bothered them before but i did take out half the plants in the tank recently so possibly co2 levels raised up with less plants uptaking co2? hopefully they are all fine when i get home. i put the glass top on the tank but it doesnt fit becuase of my intake out output tubes. the window screen is a good idea. thanks for the help
10-09-2012 12:28 AM
concepts88 I just bought half a dozen haq rasboras, and I was overdosing Co2 because I had it on a setting but took some plants out, they were panting on top of the water and they didnt jump.. and they have been in the tank only for a day or 2.
10-09-2012 12:19 AM
fusiongt Any fish can jump even if they're not known as jumpers. Just because they jump after months of not jumping doesn't necessarily mean somethings wrong with your water. I know sometimes I have to turn on nearby lights at night and my fish freak out and I wouldn't be surprised if they accidentally jumped.

I'd say putting on a top is great for all aquariums but yes it does look uglier. I personally made a window frame to go on top of the tank so it just protrudes out a bit on the edges but otherwise is rimless (you could add a plastic mesh on it as well). I think if you take away the edges they will not jump as much... they still could but it's a lot better than not having something in the way.
10-08-2012 09:59 PM
hgfx They are very skittish, as said before.
Mine are in an area of high traffic and had a couple of them jump out, (especially after lights out).
Left some of the plants grow over the surface, to provide a natural canopy.
Now they seem to be less spooked when someone walks by.
10-08-2012 05:15 PM
AVN Neons that have been living in "toxins" would be fine after a while, they'd acclimate to the water quality.

However, this begs the question, did you acclimate the Rasboras to the water correctly? It could be that your water is completely fine, there is no bullying; just that they aren't used to the water, and would prefer to suffer a slow and antagonizing death than get used to it.
10-08-2012 05:01 PM
vnghost Thanks for the replies guys. They are the biggest fish in my tank so being prayed on isnt likely. They must not like something about the water, I know fish responds to toxins by jumping out but my neons are fine. Guess I gotta busy out the test kit tonight.
10-08-2012 04:35 PM
AVN I wonder why they jump, I have never had an issue with any tetras/danios/rasboras jumping out of their containers before and I breed hundreds of them monthly.
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