If it's going to be a temporary home for the CLs, I see nothing wrong with it...I would just make sure there is plenty of flow, they need water with high levels of dissolved oxygen in it.
One filter on a 4' tank is bound to have some dead spots. I would make sure there is at least a bubble wall (cheapest option to add more O2) but even better would be a powerhead on the end opposite the filter. A Koralia style "circulation pump" rather than a true powerhead (like a Maxi-jet) would be my first choice.
How heavily will you be planting the tank? If planting heavily (I assume you are planting it because you're getting lights beyond the standard fluorescents, sounds like) an AC 50 could be fine, but if not, then go with the AC 70. It has a lot more room for media and higher flow. You might also just want to go with a canister filter, such as those white Chinese ones:
http://cgi.ebay.com/AQUARIUM-EXTERNAL-CANISTER-FILTER-MEDIA-KIT-265-GPH-/190551628736
The main advantage to having a taller tank is the extra dilution for the wastes of the fish. It also makes the water more stable...temperature, pH etc. will change more gradually on a tank with 22 extra gallons.
I would stock it like a 40 gallon tank, and if you have an option to get a 40 gallon for not much more, I'd go with it. A 33 is a size that's not readily available, I believe the 40 longs are more common, so it will likely be less expensive in spite of the extra volume...but not sure on that.
What kind of lights are you considering? Any ideas on the fish besides the clown loaches? Danios, rasboras and white clouds could all work
Or, barbs might also fit in nicely.
One filter on a 4' tank is bound to have some dead spots. I would make sure there is at least a bubble wall (cheapest option to add more O2) but even better would be a powerhead on the end opposite the filter. A Koralia style "circulation pump" rather than a true powerhead (like a Maxi-jet) would be my first choice.
How heavily will you be planting the tank? If planting heavily (I assume you are planting it because you're getting lights beyond the standard fluorescents, sounds like) an AC 50 could be fine, but if not, then go with the AC 70. It has a lot more room for media and higher flow. You might also just want to go with a canister filter, such as those white Chinese ones:
http://cgi.ebay.com/AQUARIUM-EXTERNAL-CANISTER-FILTER-MEDIA-KIT-265-GPH-/190551628736
The main advantage to having a taller tank is the extra dilution for the wastes of the fish. It also makes the water more stable...temperature, pH etc. will change more gradually on a tank with 22 extra gallons.
I would stock it like a 40 gallon tank, and if you have an option to get a 40 gallon for not much more, I'd go with it. A 33 is a size that's not readily available, I believe the 40 longs are more common, so it will likely be less expensive in spite of the extra volume...but not sure on that.
What kind of lights are you considering? Any ideas on the fish besides the clown loaches? Danios, rasboras and white clouds could all work
