First of all hello and thank you in advance for all the advice you can give on the subject - it's highly appreciated.
Here's the situation: in my tank I have 3 angel fish (plus 2 plecos, 2 pearl gouramis and 1 swordtail), 2 of them seem to be doing fine, one however developed a swelling around the abdomen area and the eyes are bulging out. I think it all started with the eyes, and the swelling developed almost right after.
It does not eat (though I've seen it attempt to a couple of times a few days after the illness started) and hides behind the filter a lot.
I usually turn off the filter when I feed the fish - so that the food would not be sucked in right away, and at those times he comes out and swims around sometimes.
He looks like a big bubble, but his scales are not protruding.
It's been more than a week and I have been watching him, and his behavior has not changed. He is not getting more sick or at least it does not look so. I might be mistaken, but I think the swelling of the eyes went down a tiny little bit today, but I'm not entirely sure.
He's not lethargic or anything, and still reacts to everything.
I thought it was constipation, but unfortunately the brine shrimp and green peas are not available where I live, and neither is cod liver oil.
I have only seen fecies come out of him once since he got sick though - short and white (forgive the details).
I wonder what it might be, I left him alone for a while not knowing what to do (in reality, none of the fish I have medicated in the past survived in the hospital tank, so I'm hesitant to do anything afraid to make things worse).
He's been sick for a bit more than a week now, and the condition just stays the same.
Today he kind of started moving around the tank a bit more, I wonder if that the the reduction in eye swelling are interconnected.
The PH in the tank is fairly high - about 8 (i tried to lower it, but the water's pretty hard, so it went right back up). That's all I know about water quality in my tank :( (Plus the mineral content is really high - the glass looks all frosted on the inside, just happened one day, spread out like forest fire :S)
Thanks in advance.
The tank was set up about a month and a half ago after about 3 weeks cycling it before the fish was added in (nitrobacteria added and all), so when I added the fish, there was no bacterial bloom or cloudiness.
I lost 3 fish since then - 1 black angel (he died first - just never ate or moved around really, just hid ever since the first day, and eventually died :( my assumption is that the alkalinity of the water was the culprit).
Second fish to die - about 1.5 weeks later - was a pearl gourami - she ate and moved around and never showed any signs of disease and distress, but in the morning I woke up and found her floating around dead. Still wondering what happened.
Third fish was one of my 2 swordtails - the filter broke and was off for a wile unnoticed, the oxygenizer broke with it (built into the filter) so the oxygen levels went down, I presume that's what killed the fish that was ompletely fine before that.
The tank is 10 gallons, 2 layers of filter mateial (whatever you call it) plus activated charcoal.