Blind Cave Tetra
I'm setting up a biotope BCT tank, i was thinking about using a 20 gallon unless things change and I end up buying another tank or two and it moves up the pecking order. So this is was i was thinking.
20 Gallon Tank
Perhaps a small catfish or two? (albino or black)
Lava Rock Work on back and sides of tank.
Is this too many fish? Should I Forget about the catfish? What gph filter should i get? Is it 10x or is that only for goldfish?
Thanks in advance.
The true species Astyanax mexicanus is a larger tetra, attaining 3.5 inches, and as you're obviously aware must be in a group. A tank of 36 inches in length is recommended. You can read more in our profile of this fish; click on the shade name, or use the second tab from the left in the blue bar at the top.
Catfish would work as tankmates. And you idea for aquascaping is excellent. A light over the tank wouldn't hurt, nothing bright, and live plants such as floating plants (which would also shade the tank).
I have Eheim and Rena canisters. Eheim are more expensive, but they cannot be equalled--at least they haven't been yet for effectiveness, reliability and durability. Rena work very well, but do not yet have the track record. In test reports, Fluvals come in third.
What gph will i need? I'm still confused on that? would it be 200gph for a 20 gallon
Buy the filter that is recommended for the tank size. Eheim, Rena and Fluval state the tank size on their respective packaging. With a canister, this is fully sufficient.
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