Rickvn
Aquarium Advice Apprentice
Hi all....does anyone have any ideas about this? I have run out of ideas.
I have a Juwel 180 litre tank with the built in filter box. I use this as a chemical filter. As media I have 3 course blue sponges which I was every week to avoid them going biological, some phosphate remover in filter socks (Rowa Rowaphos) and Rowa charcoal. I have pads of filter wool between the layers of material.
My problem is a day or two after cleaning the filter it starts blowing tiny microbubbles into the tank. I can assure you that the powerhead (Juwel specific powerhead - 600 lph) is totally submerged and there are no pipes or fittings required.....the whole box is submerged. So no air is being sucked in by accident. I even replaced the powerhead a month ago just in case somehow air was being sucked in down the electric cable...yes....I was that desperate!
So where can the bubbles come from? Can they be manufactured by some type of chemical reaction of the Rowaphos or charcoal? Sometimes they get really bad and it is a real pain to disassemble the filter every two days to clean it. I've tried soaking the charcoal in hot water to remove all bubbles beforehand. Rinsed everything in RO water.....I just have run out of ideas. My LFS can't come up with anything to explain it either.
I'd love to get to the bottom of this!
I have a Juwel 180 litre tank with the built in filter box. I use this as a chemical filter. As media I have 3 course blue sponges which I was every week to avoid them going biological, some phosphate remover in filter socks (Rowa Rowaphos) and Rowa charcoal. I have pads of filter wool between the layers of material.
My problem is a day or two after cleaning the filter it starts blowing tiny microbubbles into the tank. I can assure you that the powerhead (Juwel specific powerhead - 600 lph) is totally submerged and there are no pipes or fittings required.....the whole box is submerged. So no air is being sucked in by accident. I even replaced the powerhead a month ago just in case somehow air was being sucked in down the electric cable...yes....I was that desperate!
So where can the bubbles come from? Can they be manufactured by some type of chemical reaction of the Rowaphos or charcoal? Sometimes they get really bad and it is a real pain to disassemble the filter every two days to clean it. I've tried soaking the charcoal in hot water to remove all bubbles beforehand. Rinsed everything in RO water.....I just have run out of ideas. My LFS can't come up with anything to explain it either.
I'd love to get to the bottom of this!