Join Date: Nov 2018
Location: Oil City PA. USA
With smaller tanks of 2.5 to 3 gallon it is wise to change water more often and if not filtered would be a good idea to change the water each day. But with out testing for ammonia, Nitrite, and Nitrate first this practice might be a little to much. I know people that have smaller tanks of 1.5 and 1 gallon who change the water in these tanks of 100% each day. (it may be necessary and it may not since they don't test the water. ) Knowing the parameters of your water will tell you about the bio load and the need to do water changes.
Having snails in a tank the bio load will rise very quickly and water changes will be necessary sooner then what you expect. But in filtered tanks the water changes you do because of the increase will soon be taken care of by the filter and the parameters will once again start to even out.
If your female will not leave the snail alone she will never get use to it. aggression is part of their nature. It would be best to leave her in a tank by her self . As far as Algae building up this may be better taken care of with your water changes and reduce the light source and time the light is on. to less than 8 hours. If you have this tank near a window that gets light all day then you may have to move the tank away from the window. It is the light and the water conditions that grow the algae. Algae shows the over all health of the tank and the water condition. If the algae is only on the glass it is better to scrape the glass and then do a water change, which will reduce the algae growth (it won't get rid of it.) The more pristine you keep your water and the less light you offer the tank , the less algae you will get growing.
So reduced light times and more water changes the less algae you will build up.