but i saw in LFS they put in the main tank as they sae tt this fellow muz olso have morning and night wad.. so i think it better to place it in ur main tank.. btw bro.. pasir ris farm ah beng there got alot wad.. sa,e tank as the stingray there.. alot... different kind.. btw anyone noe wad breed is it?? i heard tt it a honey shark.. ??