Anonymous asked in PetsFish · 8 months ago

Fish tank water pure green?

Had 250l tank for 4 weeks, just added some fish. done numerous small water changes and the water has always been crystal.

Just recently the water has been turning rapidly green. i did a 50% water change and that has made it a million times worse, I cannot even see into the tank now. anyone know what this is and how to fix it?

1 Answer

  • Anonymous
    8 months ago

    You need to clean the whole tank, not just the tank itself but anything that's in it too. A full water change too.

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