Help! Why Is My Water Turning Green?

[ladydobie]

Hello, I am new to this site, I have come for help, I have a 55 gallon tank, and only have one oscar in it, I have to add that I have had this tank and Oscar now for over 5 years and never had any problems that I could not figure out, until now!!!

my tanks water has turned green, not the glass or anything in it, just the water I have done a water change and then I have changes the whole tank. rocks and all and it just keeps turning green on me... I notice just this evening that my temp, was 83 in it and I have turned that down, in hopes that might be the reason that it is turning green,

can anyone please help me with this!!!

 

[MegTheFish]

I'm going to bump this up so someone can answer you (as I have to go eat supper, lol), but I can tell you that it was a very bad idea to completly clean the whole tank, thats 5 years worth of good bacteria down the drain, and your oscar will have to go through the tank cycling, which could kill it unfortunatly if your not careful.

 

[mark.w.jones]

Hello, I am new to this site, I have come for help, I have a 55 gallon tank, and only have one oscar in it, I have to add that I have had this tank and Oscar now for over 5 years and never had any problems that I could not figure out, until now!!!

my tanks water has turned green, not the glass or anything in it, just the water I have done a water change and then I have changes the whole tank. rocks and all and it just keeps turning green on me... I notice just this evening that my temp, was 83 in it and I have turned that down, in hopes that might be the reason that it is turning green,

can anyone please help me with this!!!

Temp for oscars should be 72 - 77 according to my Baensch book so you were a little warm at 83.

Does it look like the green water algae on here:

http/www.theplantedtank.co.uk/algae.htm

If so then follow the advice mentioned.

This post shows how another member solved the problem:

http/www.fishforums.net/index.php?showtopic=169325

Also, it would be useful to know lighting wattage + length of time
Water stats: ammonia, nitrite and nitrate.
Do you have any real plants? (unlikely with an oscar I know but worth asking)

ps to TFF

 

[rockerBOO]

If it is just the oscar, you could try having the tank do a blackout for a few days