hi all would like some advice on nimbochromis fusctaeniatus i ave a chance of gettin a 4inch male but would b goin in with a rubin red ,hansbaenschi ,baenschi and 3 orange blotch aulonocars all males which range from 2-4inch in seize plus a pair of sciaenochromis fryei both males(but i belive 2 b a variant of lithobate) and a male and female astatotilapia aeneocolor (i now vics should not be in but stunnin fish and could not resist) do u think it would mix well or b 2 aggresive ? my tank holds 400lt (uk) with 2 external filters with a combined total turnover of 1600lt ph any help would b nice as i ave never kept this type of large predatory fish.