Hi ive bought cichlids yesterday and 3 of them died already so i called my lfs and asked them whats going on they said they think my ph may be low so im going to by a ph test kit now but the petshop closses soon in 1 hr thats why i need respond quickly i dont wanna want till tomorrow i dont want anymore dead fish.. so i need to know how do i raise ph?? i heard get ph up, get coral, get crushed coral, get cichlid gravel..(never seen that in the petshop).. what is the best way please.. i need the respond now so i can hurry and go get it.. and i have one other question can i put the same excatlly cichlid but larger in the same tank with the smaller one? i like this adult red one but i have some small ones can i mix them? there the same kind though.. please help..