hi everyone and thank you for the info,
I have a lot of filtration. 3 hang on back and 3 sponge and a under gravel filter fit for 20 gallons.
gh is 75
kh is 0
I have a 4 inch substrate of gravel from home depot.
I can do a fish in cycle since i currently am changing 20 gallons a day. I had three 20 gallons that were cycled, but i added dirt substrate and it messed with the filters, so i broke down those three 20 gallons, thinking my 40 would cycle in a month. plus i wanted to upgrade to the 40 gallon. right now i have no cycled tanks and im changing 100% of the water in one 20 gallon every day for the 2 ranchu.
edit: I also have hornwort, anacharis, and el nino fern in the 40 gallon.
edit: I read the article. I didnt mention my water is a little cloudy. it was very cloudy and yellow but i added accu-clear api and a carbon bag to a filter. that cleared it up a bit more. Also I have been feeding a low quality food, but i have hikari pellets arriving today. thank you for linking the article, Schuyler