Hi Guys,
well ive finally finished my 65 gallon cichlid tank and it is absoulutly beautiful

my parents and i like it so much we are goin to do another 1

Its going to be a 75 gallon tank filtered 6 times/h and i have heaps of questions to ask.
1 - Can i Have 1 Oscar, 1 Male Convict, 1 Salvini ?
2 - Are Salvini Cichlids A Lot Of $$$
3 - Can I Use A 2 CM substrate of Brickie Sand ( The same size as beach sand )
4 - Do you need an air pump ?
5 - Diet of each fish
6 - Anything Else You Might Suggest.
Thanks Alot Guys