Have a tank of tropheus ilangi and did a 25% water change yesterday. They were fine afterwards but were all on the top gulping when I get up this morning. Added another air pump and they perked up and were fine for a couple of hours but are now all on the top again. This happened a few weeks ago and I ended up changing them into another tank but have fry growing out in other tank now so can't transfer without losing fry, temp is normal and I used tap water conditioner and seachem tanganykan buffer when doing water change (same as always). any advice would be greatly appreciated 20160828_135204.jpg 73.24KB 13 downloads
Help! Unhealthy Fish After Water Change
#1
Posted 28 August 2016 - 02:00 PM
#2
Posted 28 August 2016 - 03:06 PM
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#3
Posted 28 August 2016 - 03:12 PM
water change straight from the tap or aged water?
#4
Posted 28 August 2016 - 03:12 PM
Edited by Delapool, 28 August 2016 - 03:13 PM.
#5
Posted 28 August 2016 - 03:21 PM
Test your water to rule out ammonia and nitrites - problems occurring the day after a water change could indicate a crash in the filter but I'd expect the fish to be breathing heavy on the bottom or swimming normally and have inflamed gills - check that they aren't redder than normal.
I'm wondering whether during the water change that you increased the level of water in the tank above the inlet and thats why the DO has dropped to a level that creates problems. IF you have a very high temp +30 degrees this will also lower the oxygen levels
- Hydonia likes this
#7
Posted 28 August 2016 - 04:11 PM
It's hard to tell from a photo but the water looks very still at the surface, reducing gas exchange. Increase surface movement to increase oxygen levels as the fish are suffocating.
#8
Posted 29 August 2016 - 02:03 AM
using common sense (which isnt actually that common these days) i f your fish are at the surface gasping - its because they cant get enough oxygen in to breathe..
1. dissolved oxygen level is low - as stated by a few people or
2. your fishes gills are impaired way one or another... parasite infected to the point where they cannot get water flow in to extract oxygen they need... or their gills are burnt by exposure to ammonia or nitrite or even really high nitrates.... there are other chemicals that do this as well but rarely encountered in the aquarium...
i have been using prime for long time now and never have any problems.... there are other alternatives that do the same as prime..... and theres a lot of other water conditioners that just dont really cut it 100% of the time... you do need to cater for high levels of chlorine , ammonia and chloramines in our tap water these days....
#9
Posted 29 August 2016 - 06:56 AM
Many points by others above are likely your issue I'd say. Oxygen.
#10
Posted 29 August 2016 - 11:30 AM
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#11
Posted 29 August 2016 - 01:12 PM
It could be very well something else as Bostave has mentioned,,, the often case seen though, and does seem matching to be oxygen.
Tanks I've set up for my mates and my brother, they have got pretty good at fish keeping,,, but lol, time and time again they forget and something happens where the filter output drops or there's a disruption in flow/surface churning,,, this problem is so much so, it happens to me every known again, I'll see my fish gasping, that second I look at surface, usually the surface will not be sufficiently breaking for oxygen transference,,, the more heavier it's stocked (like mine), the more amplified the situation as bigger and more bodies demand more oxygen,,, Malawi tangs require a bit more oxygen than most also.
This is why I always advise, go into a local shop or online or whatever your go is, and get a cheap little wave maker and set at half inch below water level central to one end,,,, face your filter outputs the same way,,, the circulation will increase health expanansially and visual signs should be apparent with your fish looking even better.
#12
Posted 29 August 2016 - 01:35 PM
#13
Posted 31 August 2016 - 07:07 AM
Very common for people to top up aquariums higher, and thus reduce the surface agitation from filter outputs. Might be worth lifting output up a bit.
#14
Posted 31 August 2016 - 07:28 AM
And secure your water outlets real well.
Set and forget.
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#15
Posted 31 August 2016 - 11:04 AM
#16
Posted 31 August 2016 - 11:13 AM
This is a really underappreciated aspect of running K media in a sump. I can't overfill the display to a point where surface agitation will be an issue as water will just flow down into the sump. The tumbling of the K media also provides excellent oxygen diffusion.
- Ageofaquariums likes this
#17
Posted 01 September 2016 - 11:42 AM
Quite cool just how much water is usually oxygenated just falling into the sump
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#18
Posted 01 September 2016 - 02:01 PM
Yes exactly. The water falling and tumbling into the sump + the additional water movement required to tumble my K media provides plenty of oxygenation in my sump, which is great for the beneficial bacteria in the sump and subsequently the inhabitants of the display once pumped back up.
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