[DrTim's]

fmueller is correct - filter floss has much much greater surface area then biobells or ceramic noodles. It is great media and mechanical filter which means it should be rinsed once in while to unclog it

 

[DrTim's]

Eco-Block is not alone in the world of aquarium manufacturers making ridiculous claims!

Not sure about the 2 year lifespan with the bacteria - that's a new one. Makes you wonder what happens after 2 years?! And letting your gravel go anaerobic - you're right not a good idea at all and since a lot of cichlids are diggers that's probably not going to happen anyways.

I guess it is a case of "buyer beware". Show you need to do research and ask questions - which is what cichlid-forum.com is all about.