What size tank?I don’t check my waters. I empty 20% every 2-3 weeks and clean filters. There are 2 mollies, 4 guppies and 1 pleco. I have had this tank operational for about 10 months.
There was a baby fish in the tank a few days ago but not sure if it was from this fish or another. Never noticed any other babies or a fish that even looked prego
I've found your problem! Well a few problems.It’s a 10 gallon tank; we rinse filters in reverse osmosis water, replace as needed with rinsing in reverse osmosis as well