I am still trying to find a solution to my goldfish messing up the water in their tank extremely quickly. The latest change was the filter system. It has three media in layers to help keep the water clean. You change the charcoal layer each month, the foam layer every two months, and the biomax pellet bag every three months. So much for what the directions say.
I changed the charcoal part last week. All of a sudden yesterday their water was greenish. YUCK.
The foam layer, which is supposed to be white, was pink.
I cleaned out the tank, changing all three layers and now the fish have sparkling clear water again. I have no clue why these two sweet fish continue to be able to make their water so yucky so quickly with seeming so little effort. Speaking to them about it doesn’t help.
At least, with all the practice I get, I’ve gotten down to about half an hour from start to finish on changing everything in the tank.
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