Very strange things are happening in my tank, for some reason my fish started to dye one after another.
I am doing water change on a regular basis together with the water tests and all parameters are absolutely fine:
Tank is 180ltr
Tank is not overcrowded at all (I’ve got about 29 fish of size from 2.5 to 10sm long)
Ammonia -0
PH -7.4
NO3 – 3-4
NO2- 0
Water temperature is 26.8-26.9.
It has started when I bought new pair of “mono angel fish” – it had a white spots. I have treated white spots and within 10 days it was all clear, but one of the “mono angels” died in 3 days after completing the treatment and putting back carbon to the filter.
And then I am loosing fish on a regular basis- my beautiful medium size angel fish died after laying eggs, initially I thought it was related to the birth giving and pinching by another fish, but now second one (I had a pair) is breathing very fast and most of the time next to the “death corner” (for some reason all fish which has died is swimming in one corner, before dying, where the heater is placed next to the filter). Can it be that it needed to have a pair?
Over the period of 2 weeks I lost 8 fish all of them were in my aquarium for more that 4-5 month and grown since I bought it. All fish that has died had no signs of sickness at all.
Can somebody tell me what it can be that causing death in my tank and give me an advice what should I do, please.
Many thanks in advance, Lina
Dying fish
Moderator: LoachForumModerators
Hi Lina,
Sorry to hear you are having problems with your fish. I have a few questions if you dont mind answering
Do you have the kh and gh of your tank water and tap water and also the pH of your tap water
When was the last time you did a water change and what size?
Anything out of the ordinary a part from the new arrivals?
What other symptoms (if any) a part from inactive and laboured breathing do the fish show?
Do you know if your tank is well oxygenated? -bubble wand/stone, filter splashing on surface etc
By a 'mono angel fish' do you mean the fish pictured in this link?
http://valentine.blogware.com/fish/mono.jpg
They are not a freshwater fish-they do much better in brackish, especially for long term success.
Im guessing the reason they are going to the corner beside the filter is it is probably an area that is calm in the tank.
Right now in thinking along the lines of that your new fish have brought something into your tank with them-you should always in furture quarantine new arrivals for 3-4 weeks so you do not risk your already established fish-just because you trust a pet store and fish look and appear healthy doesnt mean they always are unfortunately. I would rule out changes in aquarium chem between your tank and the store you got the fish from as you are losing established fish....
Right now I would preform a large water change-up to 50% depending on tap chem etc and try and increase the aeration in your tank. Unfortunately since you have had fish in your tank that were carring and were infected by ich it is possible that your fish in the tank could be infected even if they are not exibiting symptoms-ich can 'hide' in the gills for a period of time, that might be why you have the increased breathing. It might be best to treat another course of ich treatement as a precaution, be sure to vac the substrate very well.
Unfortunately I cant think of anything else of the top of my head at the moment unless someone else picks up on something else, but like I said, Im guessing your losing fish now because your new fish brought something in with them
Ashleigh
Sorry to hear you are having problems with your fish. I have a few questions if you dont mind answering
Do you have the kh and gh of your tank water and tap water and also the pH of your tap water
When was the last time you did a water change and what size?
Anything out of the ordinary a part from the new arrivals?
What other symptoms (if any) a part from inactive and laboured breathing do the fish show?
Do you know if your tank is well oxygenated? -bubble wand/stone, filter splashing on surface etc
By a 'mono angel fish' do you mean the fish pictured in this link?
http://valentine.blogware.com/fish/mono.jpg
They are not a freshwater fish-they do much better in brackish, especially for long term success.
Im guessing the reason they are going to the corner beside the filter is it is probably an area that is calm in the tank.
Right now in thinking along the lines of that your new fish have brought something into your tank with them-you should always in furture quarantine new arrivals for 3-4 weeks so you do not risk your already established fish-just because you trust a pet store and fish look and appear healthy doesnt mean they always are unfortunately. I would rule out changes in aquarium chem between your tank and the store you got the fish from as you are losing established fish....
Right now I would preform a large water change-up to 50% depending on tap chem etc and try and increase the aeration in your tank. Unfortunately since you have had fish in your tank that were carring and were infected by ich it is possible that your fish in the tank could be infected even if they are not exibiting symptoms-ich can 'hide' in the gills for a period of time, that might be why you have the increased breathing. It might be best to treat another course of ich treatement as a precaution, be sure to vac the substrate very well.
Unfortunately I cant think of anything else of the top of my head at the moment unless someone else picks up on something else, but like I said, Im guessing your losing fish now because your new fish brought something in with them
Ashleigh
Hi Ashleigh,
here the answers:
"Do you have the kh and gh of your tank water and tap water and also the pH of your tap water" - I don't have kh and gh unfortunately, ph is 7.4 - it did not changed since i have started my tank.
"When was the last time you did a water change and what size?"- Sunday 8/03, I have changed about 25% this time due to the problems.
"Anything out of the ordinary a part from the new arrivals?" - nothing, only new arrivals.
"What other symptoms (if any) a part from inactive and laboured breathing do the fish show?"- rapid breathing and lost appetite.
"Do you know if your tank is well oxygenated? -bubble wand/stone, filter splashing on surface etc"- I have got additional airation in my tank- air pump with the bubles going out- I can increase/decrease the airation by adjusting the pump, at the moment it is very high.
"By a 'mono angel fish' do you mean the fish pictured in this link?
http://valentine.blogware.com/fish/mono.jpg
They are not a freshwater fish-they do much better in brackish, especially for long term success."- this is what i have found http://images.google.com/imgres?imgurl= ... safe%3Doff
when I was buying the fish I've been told that originally it is not a fresh water fish, but it has been adapted to the fresh water, so it's ok to keep it in my tank.
Many thanks for your advice.
Lina
here the answers:
"Do you have the kh and gh of your tank water and tap water and also the pH of your tap water" - I don't have kh and gh unfortunately, ph is 7.4 - it did not changed since i have started my tank.
"When was the last time you did a water change and what size?"- Sunday 8/03, I have changed about 25% this time due to the problems.
"Anything out of the ordinary a part from the new arrivals?" - nothing, only new arrivals.
"What other symptoms (if any) a part from inactive and laboured breathing do the fish show?"- rapid breathing and lost appetite.
"Do you know if your tank is well oxygenated? -bubble wand/stone, filter splashing on surface etc"- I have got additional airation in my tank- air pump with the bubles going out- I can increase/decrease the airation by adjusting the pump, at the moment it is very high.
"By a 'mono angel fish' do you mean the fish pictured in this link?
http://valentine.blogware.com/fish/mono.jpg
They are not a freshwater fish-they do much better in brackish, especially for long term success."- this is what i have found http://images.google.com/imgres?imgurl= ... safe%3Doff
when I was buying the fish I've been told that originally it is not a fresh water fish, but it has been adapted to the fresh water, so it's ok to keep it in my tank.
Many thanks for your advice.
Lina
Lina
Your "Mono Angelfish" is a very aggressive fish that lives in salt water of varying salinity from low end brackish up to full marine level of salt.
This is not a community fish by any stretch of the imagination.
I will highly recommend you return this fish to the shop and tell the owner you have caught onto his (her) little tricks and will not be shopping there again.
Talk about 'anything to make a sale'
The cause of death among the other fish might very well be: this fish is killing them because they are intruding on his territory.
This is not a community fish by any stretch of the imagination.
I will highly recommend you return this fish to the shop and tell the owner you have caught onto his (her) little tricks and will not be shopping there again.
Talk about 'anything to make a sale'
The cause of death among the other fish might very well be: this fish is killing them because they are intruding on his territory.
38 tanks, 2 ponds over 4000 liters of water to keep clean and fresh.
Happy fish keeping!
Happy fish keeping!
Thank you Diana, I will definetely do it tomorrow.
One more question- I had a fresh water snail and it died as well I haven't noticed it straight away only when the shell became dark and the snail was laying on 1 plaice for 2 days can it be that the snail poisoned the tank? I did water change since the snail death 3 times already.
Would you recomend to keep the smail in a fresh tank aquarium?
One more question- I had a fresh water snail and it died as well I haven't noticed it straight away only when the shell became dark and the snail was laying on 1 plaice for 2 days can it be that the snail poisoned the tank? I did water change since the snail death 3 times already.
Would you recomend to keep the smail in a fresh tank aquarium?
Lina
Dead snails can foul an aquarium very fast, but you would also notice a bump in ammonia or nitrite, and a very bad smell.
Snails may lie quietly for a while, then die, so your snail might not have been dead for as long as you think.
Snails are sensitive to copper. Did you use a copper based Ich medicine?
There are quite a few species of snails that work very well in most fresh water aquariums. The major problems are snail-predators, like most Loaches. Even if the snail is too big for the Loaches to crunch in one bite they can pester the snail, nipping at it whenever it emerges and eventually kill it.
I have a couple of different species of Nerites, I have had Apple Snails (Escape artists) and have Malaysian Trumpet Snails, Pond Snails and Ramshorn snails in most tanks. The Loaches of course keep the Pond snail population down, so the few tanks without Loaches are grow-out tanks for these snails.
Snails may lie quietly for a while, then die, so your snail might not have been dead for as long as you think.
Snails are sensitive to copper. Did you use a copper based Ich medicine?
There are quite a few species of snails that work very well in most fresh water aquariums. The major problems are snail-predators, like most Loaches. Even if the snail is too big for the Loaches to crunch in one bite they can pester the snail, nipping at it whenever it emerges and eventually kill it.
I have a couple of different species of Nerites, I have had Apple Snails (Escape artists) and have Malaysian Trumpet Snails, Pond Snails and Ramshorn snails in most tanks. The Loaches of course keep the Pond snail population down, so the few tanks without Loaches are grow-out tanks for these snails.
38 tanks, 2 ponds over 4000 liters of water to keep clean and fresh.
Happy fish keeping!
Happy fish keeping!
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