I use a chlorhexidine solution. I empty out the tub or tank and spray it with chlorhexidine and let it set for about 15 minutes then wipe it out clean it is great because you do not have to rinse like you do with bleach.

For the water dishes, hides and plants I put them in the sink and spay them down with chlorhexidine and let them set for about 15 minutes then I rinse them with hot water and dry them off well and put them back in after I am finished.

If you buy 1 gallon of chlorhexidine it makes about 128 gallons after you mix it with water so it goes a long way.