I think that bolivian rams are a bit less colorful than the german blue rams, but they are a lot hardier. a lot of german blue ram owners have them dying unexpectedly.
They are the same size and have essentially the same temperament. Bolivians are less colorful, but still very pretty, especially once they get a little older.
Bolivians are generally hardier. Both tend to be bit sensitive, so you need to watch your nitrates with them in the tank. Germans are typically more so. YOu have enough space foe a pair in that tank for sure. Alsom the fake plants are fine, but you shoudl add a few more if the tank is sparse. Rmas also like to have cave type things. I have terra cotta pots for mine.
You have a fair amount of stocking options. You could get another school, of most any smallish tetra. Lemon tetra, xray tetra, emperor tetra, cardinal, neon, black neons, purple passion danios, zebra or leopard danios, kerri blue tetras, bleeding herat tetras ot name a few. YOu could do a school of at 6 of these. More of the smaller ones.
What kind of loaches? Kuhlis are compatable with corys and your current stock. Zebra or yo-yo loaches would be fun too, but I would add them instead of corys if you also want the rams.
If you look closely, Neons only have half red bodies, while Cardinals are red tip to tail.adammorrill said:
I do not have experience with any barb species, but I do know some can be a bit nippy. Maybe once you get a bigger school the nipping will subside. But, if you do want to replace them, I would go with either black neons, lemon tetras, or x-ray tetras. They would provide some nice color variation since the cardinals are so bright.
But, that is up to you and want you think looks nice.
Yeah, I think x-ray tetras look amazing. I really love see-through fish. ANd, you shouldn't have any nipping problems with them.
