I have a cycled 55 gal (4 ft) with 12 bloodfin tetra and some nerites. Currently have 2 red rainbow fish and would like to get 3 boesemani and 2 turquoise. Does this seem like a good amount of rainbows or too many for the 55? I have several love plants and some artificial. Aqua clear 70 hob filter. Pic of tank attached. Thanks in advance!