I just bought this Malaysian crossback Blue base arowana (xb/cb bb). It is 4-5 inches. Should I do tanning and if so, should I use a white or black backround? how long should I do the tanning, and when should I switch to black tank (if I need to do white tank treatment)? How strong light (white light or blue/yellow)? If someone can already identify sex or have some extra information regarding the pictures, that would be appretiated. Thanks
