I know if you go to any store they will tell you floss is for mechanical filtration, and you need something else for bio. However, having been in the hobby as long as I have been - longer in fact than folks like Eheim even sell 'bio media' - I know that we got good biofiltration with floss long before anybody had heard of bio balls. I have no scientific data to back this up, but I'd be willing to bet that properly packed floss has a larger available surface area than bio balls or ceramic noodles, and it maintains this surface area even after some of it has been clogged up with debris. To make a long story short, when I suggested floss, I though of converting your 2215 mostly for bio filtration, which is what I think you need to clear up the water. Floss just happens to give excellent mechanical filtration as a side productblusue2 said:when we get back, i'll convert the eheim to a mostly mech cleaning filter as per your instructions.
Just to be clear, hybrids are one issue, and one can agree or disagree on it. However, fish that are bred for anatomical deformities are a completely different issue. Those fish can be hybrids or not, but to me they are like dogs that have been bred with three legs for the enjoyment of people who like to see them hop around in a funny way. See for example here if you want to know more about anatomical deformities of blood parrots. My criticism is mostly directed at the people who breed these fish, but of course if nobody bought them, breeding would stop in short order.blusue2 said:I understand and agree with you about hybridizatin of fish