What To Put In 190L Trigon

[craig855s]

Currently I have a trigon 190 with playsand substrate and low tech planted, stocking is;
loads of platties
2 breeding kribs and 1 female (birthed by them and grown on)
3 bristlenose
1 common plec
a few rummy nose tetras
a few porkchop rasboras
1 female pearl gourami
2 gold gourami
1 blue gourami
1 leopard loach
Apple snails

I really want to change the stocking to something i can feel more involved in, I'd like to keep the common plec but done mind selling the rest.

I dont think I want lots of little fish, I think i just want a few big ones (obviously not too big for the tank) and it'd be nice if they could breed easily (I have an RO unit so can control PH easily)

 

[KittyKat]

Well, the common pleco probably would benefit from a bigger tank… if not now, then quite soon in the near future.

Because of the shape of the Trigon, the bottom area and the length of the tank are quite limiting factors. I estimate that in practice, while the longest side of the tank is 99 cm, the longest "length" that can be used by fish for active swimming is around 75-80 cm. The "corner" does add to that slightly, but it still doesn't help with particularly active species, nor with territorial species (as territories are usually circular).

As usual, I would probably prefer to go for three main species (mid-water schooler, bottom area and centre piece), and the pleco on top of that, but I really cannot think of any fish that satisfy your criteria without changing to something like Tangs or dwarf Malawis.

For a river tank, I would probably recommend something along the lines of…
* 10-15 dwarf neon rainbowfish
* pair of Kribs
* 10 dwarf chain loaches
* pleco until it outgrows the tank

As always, I strongly recommend that any shoaling and schooling species are kept in groups of 10-15+, especially when stocking from scratch.