Help With Dying Fish

richards

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Can anyone please help?

I have got a 225 litre marine tank that has been running absolutely fine since November 2005. In the last month I have lost 1 power blue tang, 1 powder brown tang, 1 cleaner wrasse, 1 half black angel, 3 fire shrimps and am about to loose 1 lemon peel angel and 2 clown fish.

Symptons are scales go blotchy, stop eating, fins go tatty, get stressed, die.

I check my water regularly and change 10% a week. All the levels are normal except for a drop in Magnesium which has been gradually brought back up using a buffer. Also my Alkaline level dropped which was also brought up with a buffer.

Everything else in the tank seems to be fine but it seemed to be fine as these fish went from healthy to dead inside 2-3 days.

Any suggestions and help would be much appreciated.

Thank you,
Richard.
 
Can anyone please help?

I have got a 225 litre marine tank that has been running absolutely fine since November 2005. In the last month I have lost 1 power blue tang, 1 powder brown tang, 1 cleaner wrasse, 1 half black angel, 3 fire shrimps and am about to loose 1 lemon peel angel and 2 clown fish.

Symptons are scales go blotchy, stop eating, fins go tatty, get stressed, die.

I check my water regularly and change 10% a week. All the levels are normal except for a drop in Magnesium which has been gradually brought back up using a buffer. Also my Alkaline level dropped which was also brought up with a buffer.

Everything else in the tank seems to be fine but it seemed to be fine as these fish went from healthy to dead inside 2-3 days.

Any suggestions and help would be much appreciated.

Thank you,
Richard.

How unusual. Kind of sounds like ammonia poisoning, but you said you check your levels regularly? Also its been running for a long time. It does seem a little small for two tangs; but they aren't the ones affected. :/

Well, I'll try to think of something; I suffered a complete die-off a while ago, and the fish had similiar symptoms to yours, except the fins were fine. :huh: Puzzling.

-Lynden
 

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