You don't really need to bath them. If their shell, or skin is dirty - simply wipe the soiled area with a damp piece of cotton wool.
So long as the horse has enough room to get up a good gallop when it feels like it and it getting enough food to eat it should be OK.
Different species of tortoise should not be kept together. While it is unlikely that they would object to each other, there is a problem with the fact that different species of tortoise have different bacteria in their gut. The bacteria from one species can be dangerous to another. You say you keep your tortoise in a tank, please note that this is not a healthy environment for a tortoise. They should be kept in an outdoor enclosure, weather permitting, and on a tortoise table at other times. Visit www.tortoisetrust.org or www.tortoisefirst.com for more information.
There is no particular number of times you should clean your horse. It still should be done regularly. You should make sure to check for cuts or other injuries.
twice a day!
yes
All animals should have access to clean drinking water at all times.
At all times, never leave your horse without fresh water!
two
if your horse has a salt lick avaliable(in its stable,stall,field,paddock etc) you dont have to feed it them!they will just lick the salt lick when they need it!
1
A horse's stall should theoretically be kept clean at all times, but since most of us can't keep it clean all the time it should be cleaned at least once a day.
It will take three times the feed of any other horse just to keep the ribs from showing.