Very High Phosphate Help

Ioana Dog

Member
I have an algae problem that started when I began adding fertilizer so I tested my phosphate and it’s super high in all my tanks. It’s also super high in my tap water which is what I use for my tanks. What should I do? Do I have to spend money getting phosphate removed to always have in my tanks? Is it dangerous to have his phosphate levels. All my fish are fine, I just have an algae problem in one of my 13 tanks.
 

OneLittleBubble

Member
algae is good for the fish so I don't know what you want. Just do some water changes and scrub it off
 

oldsalt777

Member
Ioana Dog said:
I have an algae problem that started when I began adding fertilizer so I tested my phosphate and it’s super high in all my tanks. It’s also super high in my tap water which is what I use for my tanks. What should I do? Do I have to spend money getting phosphate removed to always have in my tanks? Is it dangerous to have his phosphate levels. All my fish are fine, I just have an algae problem in one of my 13 tanks.
Hello I...

Don't fret over algae. Just reduce the amount you feed a little and buy lower phosphate foods. The best thing for your fish is to keep them in clean water. So, work up to the point you're removing and replacing half or more of the water weekly. This will maintain a steady water chemistry and this all the fish need to be healthy.

Old
 

Baba

Member
From my understanding it will not harm your fish. I would stop dosing the wide spectrum fertilizer and rather get some KNO3 (dirt cheap stuff) to supply the other macro nutrients for your plants.
 
  • Thread Starter

Ioana Dog

Member
Thank you. My tanks are very clean - I vacuum and change at least 35% water every week, sometimes more frequently. I don’t want the brown algae to get out of control so I want to take action to keep it in check.

I’ll look into getting new food and KNO3.

Thank you.
 

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