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Harlequin Rasbora problem

This is a discussion on Harlequin Rasbora problem within the Cyprinids and Atherinids forums, part of the Freshwater and Tropical Fish category; --> Originally Posted by Krigjz My rasboras seem to be acting completely normal again. I am still having a little bit of a nitrate problem, ...

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Harlequin Rasbora problem
Old 02-05-2013, 12:25 PM   #11
 
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Originally Posted by Krigjz View Post
My rasboras seem to be acting completely normal again. I am still having a little bit of a nitrate problem, though. My tap water naturally seems to have 20-40ppm nitrate, so water changes keep it around 20-40 (which is not good..). I'm going to get some floating plants this weekend to hopefully eat up some more nitrates. In the meantime, I'm doing a small water change ~(10%) every day to keep the nitrates from raising higher than my tap.

My pH has been dipping a little bit every day, but not much. It was at 7.4 before I took the tufa rock out, and now it is equalizing more towards my tap water's 6. I fear that the more frequent water changes I'm doing will make it dip too quickly, but I'll hope for the best. I am trying to get it back to my tap's pH, I learned my lesson trying to mess with my tank's pH. :/

I thought I lost two of my shrimp, but found out today that they actually shed their exoskeleton. They all went crazy when I did the water change (they like to catch all the floating food, I think), and I counted four! I feel bad for taking their exoskeletons away and stealing their extra calcium now, though. :(

One of my snails was definitely DEFINITELY dead. It smelled like foul foul death. Could this have caused some of the fish death? I think one of my other Nerite snails is dead. It hasn't moved in a while, and was one of the two I found upside down one day (the other one being the dead one). It doesn't smell, though.

I'm going to get more plants and hope they will start to devour my nitrates, then I'll get some more Rasboras to make them a happy school again. I'll keep you posted on whether they are improving or not. Thanks again for your help!

As an unrelated note, you are actually one of the reasons I joined this site Byron, . When I was researching what to do to start my fish tank, this site kept coming up in google searches. Every question I seemed to google was answered by you. You seem to be the most active member on any aquarium forum.
Thank you indeed for your kind words; I do sincerely appreciate them.

On the dead snail, this is not likely to cause any issue if we are talking the common small snails; one of those large Mystery type might, that is a more significant impact.

Let the pH lower, there will be no problems there.

The nitrates may require more intervention. Smaller-volume water changes is a first step, once the tank is lower to begin with, as this will prevent sudden significant increases. If this plus the plants don't handle things, there are some good methods we can discuss. Other members like AbbeysDad have this issue and have successfully dealt with it.

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Old 02-11-2013, 09:31 AM   #12
 
First update!

My pH has lowered to 6.4.
Ammonia and Nitrite still at 0.
Nitrate hasn't changed from my tap at all. (~30) This is a good and a bad thing. It's good because my plants seem to keep it from raising. Bad because they aren't lowering it and it's still too high. :/

All of my Nerites are now dead. I think the damage was already done with those guys. :/

All three of my Rasboras are active and acting normal.

My catfish is still alive, but I have not had him long enough to know if he's acting normal. he mostly just comes out at night and runs away when he sees me haha.

As far as I know all of my Amano shrimp are still alive. I have not found any dead shrimp, and they are experts at hiding.

Who knows if my MTS are still alive. I didn't see any last night. I still only had about 10 though, so there is a good chance I just couldn't find them.

I wasn't able to add any plants. I went to work Friday and was stranded because of that storm until yesterday night around 6. I dosed my plants using this method Non CO2 methods - Page 2 - Aquarium Plants and Excel to try and boost their growth on Thursday. With the exception of the Potassium Nitrate (which I skipped for obvious reasons), I dosed about half of what that said to see what happened with my water and plants. I dosed .1ml per gallon of Excel. When I came home Sunday night my Java Ferns had EXPLODED, so I hope they will start eating some more Nitrates It's also possible that my nitrates were higher than my tap water (>30), and the Java Ferns have been using them up. They may have lowered them back to the level of my tap water, and I just happened to catch them here. I wasn't home to check the water every day thanks to Nemo, but I'll test it again in a couple of days to see if it's gone down at all. Also, I'll do the full dosage posted in that thread on Thursday again. Weather permitting, THIS weekend I'll go get some more plants. My gH test kit is coming in the mail right now, so I'll post my gH when that comes in.
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Old 02-11-2013, 11:40 AM   #13
 
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Originally Posted by Krigjz View Post
Nitrate hasn't changed from my tap at all. (~30) This is a good and a bad thing. It's good because my plants seem to keep it from raising. Bad because they aren't lowering it and it's still too high. :/

I wasn't able to add any plants. I went to work Friday and was stranded because of that storm until yesterday night around 6. I dosed my plants using this method Non CO2 methods - Page 2 - Aquarium Plants and Excel to try and boost their growth on Thursday. With the exception of the Potassium Nitrate (which I skipped for obvious reasons), I dosed about half of what that said to see what happened with my water and plants. I dosed .1ml per gallon of Excel. When I came home Sunday night my Java Ferns had EXPLODED, so I hope they will start eating some more Nitrates It's also possible that my nitrates were higher than my tap water (>30), and the Java Ferns have been using them up. They may have lowered them back to the level of my tap water, and I just happened to catch them here. I wasn't home to check the water every day thanks to Nemo, but I'll test it again in a couple of days to see if it's gone down at all. Also, I'll do the full dosage posted in that thread on Thursday again. Weather permitting, THIS weekend I'll go get some more plants. My gH test kit is coming in the mail right now, so I'll post my gH when that comes in.
Dealing just with the nitrate issue. Don't expect the plants to have much of an impact. Most will use ammonium first, and only when that is insufficient will they turn to nitrate. But 30ppm nitrate in the source water is not good to begin with, and this is not going to lower significantly anyway.

Nitrates should not be allowed to rise above 20ppm, and keeping them at 10ppm or lower is better for the fish. You are going to have to deal with the nitrate in the tap water. AbbeysDad has posted on how to achieve this, as he has the exact same issue.

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Old 02-12-2013, 12:38 PM   #14
 
I added a Giant Hygro and two clumps of Wisteria floating to my tank. I think I found the post you were referring to and am researching De*Nitrate, Matrix, and Purigen. I'll let you know if the new plants make any difference, and if not, if the Seachem products do.
My Rasboras seem to love the new floating Wisteria though! I think a piece broke off and one of them actually ate it. Although probably only because it fit in her mouth haha.
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Old 02-14-2013, 07:12 AM   #15
 
Finally got my test in. My tank water and tap water have the same levels. The gH is 4 (71.6), and the kH is 1 (17.9).

At least I'm assuming the kH is 1...the test (I'm using API's liquid test) says to add drops until the liquid turns from blue to yellow. After the first drop it's yellowish..there never is any blue. I added more drops and it just made it darker yellow.

So...what's a good kH? I feel like 1 is NOT a good level.
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Old 02-14-2013, 10:28 AM   #16
 
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Originally Posted by Krigjz View Post
Finally got my test in. My tank water and tap water have the same levels. The gH is 4 (71.6), and the kH is 1 (17.9).

At least I'm assuming the kH is 1...the test (I'm using API's liquid test) says to add drops until the liquid turns from blue to yellow. After the first drop it's yellowish..there never is any blue. I added more drops and it just made it darker yellow.

So...what's a good kH? I feel like 1 is NOT a good level.
I never fuss over the KH. KH has no effect on fish. It does act as a buffer for pH, but if you have soft water fish they prefer it acidic so I don't worry about this. I let my tanks do what they want with respect to the pH, and with regular water changes they remain stable.

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Old 02-14-2013, 12:25 PM   #17
 
Yeah, as I was reading up on it more and more I became less and less worried about it, haha. Now I just have to get my nitrates down and I'm all set. :P Thanks again!
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Old 02-21-2013, 09:04 PM   #18
 
My Purigen came in the mail. It didn't really fit in my stock Aqueon filter (I bought one of those deluxe kits), so I bought a bigger Aquaclear 50. I'm not using the carbon insert (replaced it with the Purigen.) I'd like to eventually not use the Purigen at all (maybe use it in buckets overnight or something) once my Nitrates in my tank go down considerably. Matrix has not come in yet.

Almost everything in my tank is dead. >< I put 4 more Rasboras in there because I felt my 3 were getting lonely. The last of the original 3 Rasboras I had went, but the other 6 are doing fine. My Amano Shrimp all went. One at first, then all but one went about 4 days later. The last one lasted for another week. I put 4 more Nerite snails in the tank. They died overnight. >< Even all of my MTS have died (I thought these things were supposed to be impossible to get rid of!) The one that hurt the most, my little baby BN Pleco passed away. :(

Not sure if my filter's current is too strong. It is rated at 200 gph, but it is adjustable. The Rasboras seem to LOVE it. Three of them played in the current for a good long while.

I also picked up some R/O water from Petco and mixed it in with the water change. Not economical at all ($4 a gallon ><), but hopefully it helps for now. I'm also going to test my water at work tomorrow. If it's not too far off in terms of hardness, I may just fill up some 5 gallon buckets and bring them home. I may get some weird looks, but I'm just stealing water, so that's okay, right?

My Giant Hygro is doing Okay. A few leaves have fallen off, but there seem to be 5 or 6 new ones growing. A bit of my Wisteria died. Some new Wisteria has grown at the same time. So, I think maybe it was the shock of a new tank maybe. Either way, they seem to be growing fine now.
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Old 02-22-2013, 10:55 AM   #19
 
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I read through this thread to refresh my memory. I have a couple observations.

The shrimp probably won't manage in such soft water, so forget them. Ths is not the time to start fiddling with water parameters. And for the fish, what you have is ideal. So be satisfied with that.

Same may be true for the snails. But Malaysian Livebearing will thrive in any water, even in my very soft zero-GH water they are in the hundreds. There may be some in the substrate.

The death of the original fish, but not of subsequent acquisitions, is actually encouraging. We don't know what may have affected the original fish.

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Old 02-28-2013, 02:15 PM   #20
 
Another update!

All of my remaining Rasboras seem to be doing great! The nitrates in my tank are still a little high (looks like between the 30-40 range). But, I got some Matrix and Purigen. I'm now using the Matrix in my tank. I also got some extra Purigen and Matrix. I set these up with my old HOB filter and a 5 gallon bucket. I let it run overnight and tested the water in the morning...0 nitrates! Hooray for clean water for water changes! So, hopefully my tank nitrates will go down considerably (since I'm no longer putting new ones in!)

It seems the nitrate level in my tap has gone down by itself as well. (10-20 nitrates). Probably due to it being Winter..I'll check it again in a few months. Anyways, thanks for all your help! I can't wait to restock my tank and put some pictures up!
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