wanabesalt
Member
tap water may be cheaper but in the long run its better to start with....ro/di........at your local grocery store they have ro water dispensers out side the store were you can fill up your containers for 25 to 35 cents a gallon..........why stress over your tank with brown algae from useing tap water and getting diatom explosions ........it will be more work cleaning the glass and looking at your nice white sand turn to muck...... i bet every day when you wake up you will want to look at your tank and you just cleaned the glass only to find it has more brown junk on every thing ........so start out right and use reverse osmosis water at your local grocery store/or your local fish store.