Oohitsae
Aquarium Advice Addict
Personally, I think you have too many fish. If it were me, I'd take out one entire school. Probably the congos and not replace them with anything else since they get pretty large.
If you want the rummy's or cardinals, take out a different school, whichever other gets pretty large.
I overstock my tanks a lot too, but in a 30 it'll look really crowded and busy.
You should also consider keeping only 1 bottom feeder, I'd stick with Cory's and remove the loaches since they tend to be pretty shy. And then go with either the hatchet fish or bentos tetras. You could add a couple more to whichever you decide to keep if you went that route, and your GBR's/DG's could definitely be your centerpieces.
You can have more Amanos if you like, they don't contribute much to bioload, but they are filter feeders so you'll want to have an established (up and running for 3+ months) before you add them so they have stuff to eat.
If you want the rummy's or cardinals, take out a different school, whichever other gets pretty large.
I overstock my tanks a lot too, but in a 30 it'll look really crowded and busy.
You should also consider keeping only 1 bottom feeder, I'd stick with Cory's and remove the loaches since they tend to be pretty shy. And then go with either the hatchet fish or bentos tetras. You could add a couple more to whichever you decide to keep if you went that route, and your GBR's/DG's could definitely be your centerpieces.
You can have more Amanos if you like, they don't contribute much to bioload, but they are filter feeders so you'll want to have an established (up and running for 3+ months) before you add them so they have stuff to eat.
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