Sick Fish?

[bubbles]

We have about a dozen Koi and have had them for years. Lately they have been neglected because we have been out of town quite a bit. Today we noticed one Koi is very thin - it's lost a great deal of weight. Another Koi seems to have a milky film on it. Any ideas on what we should do or what might be the problem? Thanks very much.

 

[baeya]

Welcome to the Forum. Sorry your koi aren't feeling well
There are several members here that will try to help you, but to give you a heads up, they would like to know as much about your pond as possible. Size, depth, filters, water chemistry, the zone in which you live, etc.
Good Luck........

 

[fishin4cars]

As bayea stated the more info you can provide the the easier it is to try and help. Test the water and let us know what the readings are, i suspect water quality as the first issue to address. From the sounds of it I would be testing PH, GH, and KH first, Nitrate and ammonia second. Nitrite, and other possiblities next.

 

[j.w]

bubbles
Hope we can help ya w/ more info.

 

[Becky]

Hi bubbles, welcome to the forums!

 

[DrDave]

Welcome to the Forum!

 

[bubbles]

Thanks for your interest. Our pond is about 6' x 13' by 18" deep (900 gal?). The water is recirculated through a 50 gallon bacterial filter situated 2 ft behind and 4 feet above the pond. The filter is filled with lava rock and a 2" fiber filter above the lava rock.. The water returns to the pond via a 9 foot wide waterfall. Dropping four feet in to the pond, I believe gives it sufficient aeration. We live in Maryland. Chemistry: Nitrite between zero-.25; pH level between 5 and 6; ammonia - zero; phosphate 10. nitrate - safe; alkalinity is low. hardness 75; Bacteria used is Bacta-Pur.

 

[sissy]

your ph is really low way to low for koi I keep mine between 7 and 8

 

[addy1]

Welcome to our group, good luck with your koi