Tropical Fish Forum

Tropical Fish Keeping Help and Advice => Fish Health => Topic started by: Helen on June 08, 2018, 08:08:22 PM

Title: Rainbow with a swollen belly
Post by: Helen on June 08, 2018, 08:08:22 PM
My rainbow had a sore on his side. It looked like it was healing but the last couple of days it seems to have got worse and today it looks like he has a white thread hanging out his anus. Unfortunately I haven't been able to take of photo of it from the side with the wound.

Thoughts on what it could be and what treatment action i need to take?
Title: Re: Rainbow with a swollen belly
Post by: Sue on June 08, 2018, 08:50:11 PM
When I was restocking my tank a couple of years ago, dwarf rainbows were one of the contenders so I read up on them. I came across several sites saying that this species is prone to ulcers. Does the wound on your fish look anything like an ulcer? I have found a few comments that the main cause of these ulcers is feeding the fish too much flake foods which are rich in protein and fat. Food such as small crustaceans, fruit flies, bits of fish and algae & courgette seem to be better for rainbows in general.

As for the wound/ulcer, you could try eSHa 2000 or Myxazin in a separate tank. They may not cure the would but they should stop secondary infections. And since rainbows need big water changes, a few 50% + water changes a week on the hospital tank might also help.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 08, 2018, 09:18:46 PM
I had thought it was an ulcer, so I've only given the fish dried flakes once in the last few weeks. All the fish have been on a diet because of this one rainbow.

I did give them dried food earlier this week and have started with the liquid co2. (At an eighth of the recommended dose for my tank) Could that have caused it to get worse?

My quarantine tank is packed away, so needs some serious tlc to be brought into use. So it'll be tomorrow before I can do that.

Sorry, it's not great quality but after about 20 attempts, I've managed to get a picture of the sore.
Title: Re: Rainbow with a swollen belly
Post by: fcmf on June 08, 2018, 09:24:34 PM
Yes, this looks rather like what my female x-ray tetra had ie an ulcer which ultimately became repeatedly infected and finally led to her demise. It started off small, when I really ought to have removed and treated her, but for various reasons didn't. I'd advise TLC-ing the QT and nipping this in the bud over the weekend through the medications suggested by Sue.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 08, 2018, 10:06:11 PM
My quarantine tank has a triangle base. Which drives me mad and I'm not sure the fish like. So I am researching if I can get a new tank tomorrow. Along with medication.

I have extra ceramic media in my filter, and my excess anubias can go in. As well as rather a large amount of substrate from my refurb (sieved, larger gravel and washed play sand!)

Thank you for your advice and help.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 09, 2018, 03:03:45 PM
What is the difference between Myxazin and Myxazin P?
Title: Re: Rainbow with a swollen belly
Post by: Sue on June 09, 2018, 04:25:45 PM
Myxazin P is meant for ponds which probably means it is more concentrated as ponds usually have a bigger volume than tanks. It is easier to accurately dose small volumes of a more dilute formulation in small tanks, while you'd need a lot of aquarium strength Myxazin to dose a pond.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 09, 2018, 04:32:38 PM
Ah, ok. I just need to normal one then? Otherwise I'll be putting tiny amounts in my 25l aquarium!
Title: Re: Rainbow with a swollen belly
Post by: Sue on June 09, 2018, 04:39:11 PM
I would go with the normal, non-p Myxazin or, as you say, with 25 litres you'd have to add a fraction of a ml  :)
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 09, 2018, 08:57:53 PM
New betta tank hospital tank is all set up. Albeit without mature media, plants or poorly fish.

I know it was a long time ago, but my first ever tank catastrophically cracked during set up (pre fish, thank goodnes). So I'm just being a little bit wary and would like to run the tank, heater and filter overnight before I put a poorly fish in. I don't want kill him when I'm trying to heal him!

I thought the wound is looking better today, but he is not behaving well. I hope he lasts till tomorrow and that I've not left it too late.
Title: Re: Rainbow with a swollen belly
Post by: Littlefish on June 09, 2018, 09:22:02 PM
New betta tank hospital tank is all set up.

I feel that a case of multi tank syndrome is about to strike.... ;D

I think that it is a good idea to run the tank overnight, just to be on the safe side (except in cases of full on emergency).

I hope that things go well with the rainbow recovery, and please keep us updated.
Title: Re: Rainbow with a swollen belly
Post by: TopCookie on June 09, 2018, 11:36:53 PM
Best of British (and French) with the poorly dude H...  :)
Title: Re: Rainbow with a swollen belly
Post by: Rustle on June 10, 2018, 07:10:02 AM
Hope things work out for your poorly fish.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 10, 2018, 09:00:14 AM
Good job I left the tank running overnight. The heater definitely works. But I set it way too high. Tank was 30°C this morning. My poorly rainbow would've cooked if he's been in there!

Fortunately with 25l a quick 50% water change, with cold water only has appeared to bring the temperature down to 24°C, which is where I want it. Need to let it resettle for a couple hours.
Title: Re: Rainbow with a swollen belly
Post by: daveyng on June 10, 2018, 10:24:19 AM
Don’t know about anybody else but I have had problems with dwarf rainbows in the past. They grow well and colour up nicely but usually after a year in the tank start having problems. Usual ailments are Dropsy and ocassionally tumerous growths. It’s almost like the water parameters are wrong for them or something stresses them which doesn’t seem to affect the other fish.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 10, 2018, 11:17:16 AM
I've only had mine a few months - I bought them at the end of January. They haven't fully grown yet. But the one that is poorly was the largest of the males and is now almost the smallest.

As @Sue mentioned earlier, I also read that they don't do well on dried food. So I had originally thought that was the issue (especially when it was the largest and greediest rainbow that was suffering) so I've been feeding a lot of frozen and gel foods recently.

I'm starting to suspect that the rainbows will need non-dried food more than once a week and am trying to work out what the best food routine will be for them.

What did you feed your rainbows, @daveyng ?
Title: Re: Rainbow with a swollen belly
Post by: daveyng on June 10, 2018, 12:49:29 PM
The fish in the aquarium get a large pinch of flake in the morning (Tetramin) and a cube of frozen either bloodworms or tropical mix (Ocean Nutrition) in the early evening alternating between the 2. Sometimes I buy a cube mixture to replace the bloodworm. Just before lights out I add an algae wafer and a few of the smaller sinking wafers (Hikari) for the bottom feeders and the shrimp to fight over.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 10, 2018, 04:19:01 PM
So the poorly rainbow is in the hospital tank with myxazin, a couple of floating anubias and as much filter media as I could squeeze inside the foam.

He made little protest about me catching him and putting him in a jug. And actually seemed less poorly once in the hospital tank. He's not staying as close to the surface, he seems happy hiding under and behind the annubias.

When I was at the fish shop, buying the myxazin, I also got some black / blue backing. Because of the way it curls and the tank is actually lifted up a bit (it is described as floating) I've been able to just 'wrap' the backing over the back edge and the top and bottom of the tank at the back.

The wound and the swollen belly look better today, but his behaviour is more that of a poorly fish than it has been to date. Here's to hoping this helps.

Should I feed him while he's in the hospital tank? I definitely don't want to feed him flake, but would he be better off on a total diet?
Title: Re: Rainbow with a swollen belly
Post by: Sue on June 10, 2018, 07:32:31 PM
I would feed him, but smaller portions than he would usually eat.
Title: Re: Rainbow with a swollen belly
Post by: Helen on June 12, 2018, 10:27:45 AM
I couldn't decide yesterday whether the rainbow was looking better or not. Turns out it was the latter as he died overnight.  :(
Title: Re: Rainbow with a swollen belly
Post by: TopCookie on June 12, 2018, 10:41:28 AM
Oh blimey...  sorry for your loss Helen...
Title: Re: Rainbow with a swollen belly
Post by: Sue on June 12, 2018, 11:18:10 AM
Sorry to hear that Helen  :(
Title: Re: Rainbow with a swollen belly
Post by: Littlefish on June 12, 2018, 01:27:38 PM
So sorry to hear about the loss of your fish.
Title: Re: Rainbow with a swollen belly
Post by: daveyng on June 12, 2018, 04:50:45 PM
Sorry to hear that Helen.
Title: Re: Rainbow with a swollen belly
Post by: Rustle on June 12, 2018, 06:15:50 PM
Sorry for your loss.
Title: Re: Rainbow with a swollen belly
Post by: fcmf on June 12, 2018, 06:16:05 PM
My condolences.  :'(  I agree that it's often difficult to tell whether there's an improvement or not / what way the trajectory is going, and it's only possible with hindsight. Sorry that this was the outcome.
Title: Re: Rainbow with a swollen belly
Post by: Matt on June 13, 2018, 06:06:29 AM
Oh dear... we seem to be having a spate of bad news here at the moment....