Rjoepenk
Aquarium Advice Apprentice
I am slightly suspicious that my filter may be broken, the funnel at the top is producing a flow but there is now 'suction' at the bottom where the water goes in. My ammonia is between 0.75-1 and I can't get it down, the tank was cycled last week but no matter how water changes I do now it just won't go down. Any ideas?