Emergency problem!

[Poecilotheria]

First let me start by saying Merry Christmas to everybody !

I am finally getting the hang of this aquarium thing!

My oscar is huge compared to when I first got him and very friendly he eats from my hand.
I added another oscar and for quite some time all seemed well. The formed a mini school and hang out together.

First problem is... A while back I was given a male and a female convict...
The male got big and agressive FAST! he attacks everybody in the tank non stop and he almost killed the female. He did some damage to the fins of the oscar... and the oscar is much bigger than he is.

I separated the male convict from the rest of the tank via a devider.

Now i'm not sure what to do... I don't want to keep the convict but who wants an agressive fish...

The most recent and more troubling problem is something that may cost the life of my fish if I cant figure it out...

I did a round of API fungus cure... the stuff that turns the tank green. At the time all was good...

After the treatment I emptied out 2 thirds of the water and added fresh water like it says in the instructions.
I didn't replace my carbon filter right away in my aquaclear 110 because it was still pretty new.

The water was still a bit green...

I went away for a week...
when I came back the tank was still a bit green... and the large oscar is hanging around near the bottom of the tank and he swims with is head up and hit tail down... and the fins are relaxed... he doesn't look well.

The temp is good...
I put a new carbon filter in and did a full cleaning of the filter...
Did a full water change...
added some melafix and such...

He still looks sick...

I'm out of ideas and short on time.

Please save my fish !!

 

[TwistedPenguin]

Quit putting meds in the tank. Why did you use the Fungas Cure? In almost all cases fresh clean water and lots of it does more good than meds. You really need a test kit for ammonia, nitrites and nitrates in order to test your water quality. Don't worry about pH or kh or gh. A test for the 3 I named is most important. We need to make sure the tank is cycled and if not then there's your problem right there and only lots of water changes will help.
How long has the tank been set up and what size is it?
With 2 Oscars you really need a minimum 100 g tank, add a Convict and it should be like a 125 g. I'd give the male Con to a fish shop or try to give him away on CraigsList. The female will be good for clean up duty in with the Oscars.

 

[bob965]

You seem to be adding random meds without any real purpose or understanding. Stop.

You absolutely need a test kit to have any idea at all what's happening in your tank. There is a good chance you made things a little worse by destroying your bio filter when you cleaned your filter out. You are going to have to be very vigilant with your water testing, and do water changes and use Prime to control your levels until your tank stabilizes.

Also, what size tank do you have and what are you using for filtration?

 

[Poecilotheria]

'Why did you use the Fungas Cure? You really need a test kit for ammonia, nitrites and nitrates in order to test your water quality. We need to make sure the tank is cycled and if not then there's your problem right there and only lots of water changes will help.
How long has the tank been set up and what size is it?'

I used the fungas cure just because... figured it was a good thing.
I test for ammonia and nitrates... it seems ok for that.
The tank is 90 gallon possibly more and 5-6 months old so it should be cycled alright.
I change the water frequently... reduce it by 3-4 or more and add clean water.

The water is from th tap but I don't think we have chlorine or anything in our tap water.
The temperature did fluctuate a bit with a power outtage we had during minus 40 weather.
the only other thing I can think of thats been changed is I added one of those rotating automatic feeders while I was gone.

 

[Poecilotheria]

There is a good chance you made things a little worse by destroying your bio filter when you cleaned your filter out. You are going to have to be very vigilant with your water testing, and do water changes and use Prime to control your levels until your tank stabilizes.

Also, what size tank do you have and what are you using for filtration?

I'm not sure... how did I destroy my bio filter ?
I'm using an Aquaclear 110 with zeocarb.

When all this started I replaced the old zeocarb bag to see if that would help.

 

[uncwnells]

lol you thought it would be a "pretty good idea" to just randomly add meds to the tank, and on top of that you have no idea how many gallons your tank is...I think you need to reevaluate what the true problem here is. If your tank is a 90 it isnt big enough for the oscars.

edit: just saw your post and you also need more filtration.

 

[Poecilotheria]

lol you thought it would be a "pretty good idea" to just randomly add meds to the tank, and on top of that you have no idea how many gallons your tank is...I think you need to reevaluate what the true problem here is. If your tank is a 90 it isnt big enough for the oscars.

edit: just saw your post and you also need more filtration.

I though the 110 was about as big as it gets without going into canister filters and such ?

Would a second 110 work ?

As far as I know the aquarium is a 90... i'm told its 90 but it looks a bit bigger to me I just have no idea how its calculated.

lol yeah in hindsight the randomly adding meds was a bad idea.

 

[TwistedPenguin]

I used the fungas cure just because... figured it was a good thing.
I test for ammonia and nitrates... it seems ok for that.
The tank is 90 gallon possibly more and 5-6 months old so it should be cycled alright.
I change the water frequently... reduce it by 3-4 or more and add clean water.
The water is from th tap but I don't think we have chlorine or anything in our tap water.
The temperature did fluctuate a bit with a power outtage we had during minus 40 weather.
the only other thing I can think of thats been changed is I added one of those rotating automatic feeders while I was gone.

You said the ammonia & nitrates 'seemed ok'. Ammonia should always be '0', nitrates (with an 'A') should be preferably under 20 ppm in a perfect world and you didn't mention nitrItes (with an 'I') at all so that leads me to believe you're testing with paper test strips instead of the liquid drops in a test tube. The drops are a lot more accurate.
What do you mean you reduce the water by 3-4 or more? Inches? Gallons? Either way that's not enough and assuming it's a 90 degree tank you need to be doing at least a 75% water change a week. The feeder might've released too much food and caused an ammonia spike. Is there any way we can get exact readings for ammonia, nitrite and nitrates? Measure your tank (length/width/height) and I can tell you how many gallons it holds. No more meds though, ok?
Edit: And with 2 Oscars in a 90 g tank yes-you'd need another AquaClear 110. That's really not enough room for 2 Oscars and it'd be next to impossible to stay on top of water quality (nitrates).

 

[bob965]

I test for ammonia and nitrates... it seems ok for that.
The tank is 90 gallon possibly more and 5-6 months old so it should be cycled alright.
I change the water frequently... reduce it by 3-4 or more and add clean water.

The water is from th tap but I don't think we have chlorine or anything in our tap water.

What did you use to test? You need to test for nitrite too, in addition to nitrate and ammonia. Saying "it seems ok for that" makes it seem like you're not really testing, or you don't know what you're doing. I'm not attacking you, just letting you know that if you come asking for help, you have to show a little effort or people are just gonna get frustrated with you and not help at all.

Most municipal water sources are treated with chlorine or chloramine. Saying "I don't think we have chlorine or anything" again shows a bit of a lackadaisical attitude. You should go get a bottle of Prime, and use it with every water change.

 

[Poecilotheria]

The water is reduced by about 75% when I change it.
It is true i'm still trying to figure out how the water testing works, I know the Ammonia was 0 last time I checked I know I have either nitrate or nitride but i'm not sure which I didn't know until just now that there was two different types. Which ever one I do have it was at zero as well.
I have the liquid test drops like found in the master test kit but just the individual tests.
It looks like ill be getting another filter and a bigger tank.
As for the water... it might have something in it but I have no idea what, most people around here just seem to use it right from the tap for their fish with no adverse effects and I know its not chlorinated, but it could be chloramine. Ill have to look into that more deffinatly.

This is giving me some ideas...
Also the small chunk the convcit took out of the oscars dorsal fin... will this heal eventually ?