in order to your questions
trust me you had way less questions than I did! :joy:
1)well... if on tuesdya your water level is ____ high and then on sunday your water is _____ high then you would not want to replace it with saltwater because water evaporated from your tank this is called topping off you always want to make sure you top off periodically cause when the water evaporates it leaves behind the salt this raising the salinity. You will also want to do water changes which is where you take out 15%-20% of your water and replace it with an equal amount of new saltwater, this reduces poisonous things like nitrates.
2)basically any container that will hold the amount of water you need to change (in your case something like a 10-20 gallon storage container.)
3)just buy an extra powerhead ( online is the best place cause the LFS will RIP YOU OFF on powerheads
4)i would pump it into the tank by taking a piece of tubing and attaching it to your saltwater tubs powerhead. If you pump it into the sump the sump may overflow. :scared:
5) yep you just make the salt out of the stuff at you LFS or online vender but not like the grocery store salt.
