Hi Milton,
Actually I plan to set up a web site/blog to keep some of this stuff available permanently and then I will simply begin inserting links to the FAQ's I respond to frequently. I am more of a wild and domestic Discus expert than catfish and Apistogramma are among my favorite fish to work with hence my username. I can make a broader amount of my experience and advice available on my own web site and I think I could help more people that way with subjects covering nearly all types of tropical fish, plants, build tanks, building filters, treating diseases and tricks I have discovered over the years. Many Discus people have been urging me to do this for years. I have helped so many people become accomplished Discus breeders that I lost count long ago. I am a moderator over at the wild Angelfish forum
http://www.finarama.com so I cover wild Angels, too. I have raised well over 150 different Killliefish species. I have been involved with the tropical fish as a business since 1966 when i was only 15 but I began breeding fish at 11 years old. Not guppies but Mozambique Mouth breeders, used to be Tilapia mossambicus but I believe they were placed in a different genus quite a few years ago.
i am also very interested in the small species of wild bubble nesting Betta species. Like I said, I need my own web site to spill all my beans. I am getting old enough and am retired early due to an injury and now it is my time to help the hobbyists who are still wanting to learn some of the things I know that can help smooth their way.
The airlift filter will never collapse due to suction and clogged sponges so it provides a back up. I always use one air lift filter, an air stone and the power head driven sponge filter even in my Discus tanks. The Pleco tanks produce more silt which clogs sponges sooner than in my other fish tanks and I sometimes maintain high stocking densities and during the summer my aquariums sometimes reach nearly 90*F so I consider air lift filters and air stones live saving devices should a sponge on a power head clog and I loose all that circulation.
Avid Trout fly fisherman. ·´¯`·...¸><)))º>