Ive never had a tank in the 20 gallon range. How often and what % would I need to change in an uncycled 20 gallon long tank with 2 male guppies and 3 nerite snails?
I do have a test kit and plan to use it
Using the gravel vac I would guess 50% twice a week for the first couple of weeks then 50% once a week from then on??
Or would you perform more in the first week, like 30% every other day?
I would do few more water changes than that until the tank is cycled. More frequent water changes opposed to big ones. Maybe 10% every second day since the stocking isn't too much.
__________________
5g Planted Tropical
1 male Betta
Unknown amount of Malaysian trumpet snails