Wow! Thanks for posting that nice article a bit long. Good advice. I remember as a kid having a 15 gal. tank and we never did water changes to that tank. I remember cleaning it out maybe once a year. It had the kind of hang on back filter with the cotton fiber white floss and you would just change that once a month and put the carbon on the bottom. I remember having good community fish like guppies, angelfish, tetras without any major problems. The article makes sense as this is the same with children brought up without pets and and being exposed to other household stuff like dust. The children suffered allergies and all kinds of stuff.So as the article stated why not fish.
I have a unfiltered tub pond that I started over the summer and posted on this forum in ponds. It's amazing how the fish are all doing good in that pond. No water changes just the plants that I have inside and adding water for evaporation.Big tempature changes from night to day. I have had more endler fry born in that pond then in my tanks. They are bigger and seem really happy in that pond which happens to be a plant pot of 15 gal. without a hole on the bottom .I bought this at Walmart for under $15. I since replaced the endlers with some of my Bumblebee plaies as I do not think my endlers will survive the fall/winter months. I will be leaving some platies in over the fall/winter. I have not even fed them for several months and they are doing great. They eat bugs and algae from the pond. I also noticed that their colors are a brighter color. Check out the article on Pond Unfiltered tub pond.
I have had issues with angelfish and I contacted Steve from Angelfish plus. He told me to feed fish in QT (new fish) immune booster flakes for a coulple of weeks and them use the de-wormer flakes a week after. I do this for every new fish I get now. Angelfish
is a good place to get these medicated flake food from Steve. He is so helpful as I had problems with my angelfish dieing and getting sick right after I had them for a few months. I just wanted to QT them and asked Steve what to do in case I got new fish. This might help others that do not want to introduce new fish to their tanks. In the long run it will be good to ad them later after the 2 week medicated flake treatment to be safe.
I may cut back on my water changes to my 55 gal. tank. I did twice a week of 25% as I had 2 Wild Columbian Rams in that tank and was told they are fussy about water. One of them died and I only have 1. I have only 14 fish in that big tank. I have a bio/filter and rotate the catridges only replace the one in the back with a new cartridge and move the one in back forward.This uses 4 cartridges. This save money and the bio is still in the pad. I never do water changes and filter pad change on the same day. I do once a month filter changes at the beginning of every month. I feed once a day and sometimes skip a day. So far I have a healthy tank. I took out my uv/clearafyer as the uv light was expensive to replace and lasted less then 1 yr. I was told it was a waste of money from someone in my fish club.
We sure can learn alot by that article and it does make sense.Keep the stronger fry and get rid of the weak ones you will get a nice group of strong healthy fish.Thanks again for posting that long but good article.