Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Help!!! Rasbora Hets are dying (http://www.tropicalfishkeeping.com/cyprinids-atherinids/help-rasbora-hets-dying-33577/)

PedrosPinnacle 12-09-2009 09:08 AM

Help!!! Rasbora Hets are dying
 
I have a 75g freshwater aquarium. I have had 18 Rasbora Hets for about a month now. However three have died in the past three days. I observed one sinking to the bottom of the tank and then wildly swimming around before dying. I checked my water and here are the conditions:

Nitrates - 20 ppm
Nitrites - 0 ppm
Hardness - approx. 300 ppm
Chlorine 0 ppm
Alkalinity - approx. 90 ppm
PH - 8
Temp. - 78F

*Note: My water is very hard with a relatively high PH. However all of the fish were born locally in similar water conditions.

Tankmates - 7 Small Koi Angelfish, 6 Japonica Shrimp, 1 Bushy Nosed Plecco, 1 Flower Shrimp. (No one has been aggressive that I have observed).

I have two Marineland HOB filters.

Any ideas?

BettaKeeper 12-09-2009 01:34 PM

Did you see any physical signs of illness like ich? When you say one was wildly swimming about, was it rubbing against objects (parasites) ?

PedrosPinnacle 12-09-2009 02:19 PM

No physical signs of illness. No bulging eyes, no white spots. He wasn't rubbing against anything. He just started swimming violently in circles and then just stopped. Someone recommended I soak frozen food in garlic extract. I guess it's supposed to help flush out the digestive system including parasites and bacteria.

BettaKeeper 12-09-2009 02:33 PM

That's strange, never heard of the garlic thing either. Sorry but I don't know exactly how to help. :-(

PedrosPinnacle 12-09-2009 02:52 PM

That's okay. It is definitely a mystery. I just hope I can find the cause before I lose them all.

BettaKeeper 12-09-2009 04:01 PM

:-( Yes, good luck.


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