Tropical Fish Keeping - Aquarium fish care and resources

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Yellamo 02-23-2009 10:00 AM

New Dwarf Gouramis Keeled OVer
I purchased 4 Dwarf Gouramis from LFS yesterday. This morning, one was pretty much dead on his side at the bottom of the tank. Two of the others are sitting at the top of the tank looking like they're trying to get some air and the third is circling like he's drunk.

The 65 gallon tank has been cycled now for over eight weeks and I have the following fish (which are doing fine):
- 10 Zebra Danios
- 5 Black Phantom Tetras
- 1 Clown Pleco

The pH is around 7.5 and no Ammonia or Nitrates present. Last water change was Thursday (about 30% with a gravel cleaning).

I'm thinking I just got some bum fish or they freaked out getting acclimated.

They're great looking fish and I'm hoping to get some more, but I was curious if anyone had an idea as to what the problem might be.

1077 02-23-2009 10:47 AM

Some fish acclimate to new water better than others. I usually let the bag or bags of new fish float in the aquarium for twenty to thirty minutes. I then open the bag or bags, roll the top of the bag down two or three times so that it floats upright or secure the bag to the aquarium with clothespin or other type of clip and begin adding 1/2 cup of aquarium water to the bag or bags every four to five minutes. Once the bag is near full , I pour out half the water and again add aquarium water to the bag at four to five minute intervals 1/2 cup at a time until the bag is once again full or very near full. I then net the fish from the bag and release them into the aquarium.
It appears that there is a iridovirus that is very common with some of the dwarf gouramis and is by most accounts untreatable and highly contagious. I would perhaps look elsewhere for these fish than where you got the others and consider quarantine tank for new fish so that in the event you inadvertantly purchase fish that maybe have health issues that your otherwise healthy fish do not become victims.

mattyphilly 02-23-2009 02:31 PM

colisa lalia's are known to kick the bucket quite fast cos of overbreeding. Really sad.
Colisa chuna's are much hardier, in case u're looking for small sized gouramis

Yellamo 02-26-2009 06:35 PM

Just to provide some closure for anyone else reading this posting.

First, thanks for the information folks. It's greatly appreciated.

So, after the original post, only one of the original four fish survived. I took the three dead ones back to the LFS and they replaced them with Powder Blue Dwarfs (the remaining Rainbow Dwarfs looked kinda weak).

As of today (about four days later), all four fish are doing fine. I even added some plants (fake for now) and they all seem to be happy. So now I have 1 Rainbow and 3 Powder Blue. Unless you look closely, they tend to look the same. I'm happy with them.

Moral of the story. I'm thinking I just got a few bad fish that couldn't handle the acclimation or were just weak. Looks like that happens more than we realize.

iamntbatman 03-02-2009 06:04 PM

Yep...definitely not a rare thing for dwarf gouramis to not survive the acclimation process. Glad to hear things are doing well with the new fish!

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