Fluval Edge

[loraxchick]

about the agitation and O2 issue...
think of a stream with surface area "X" and a lake with surface area "x" also..which will have higher O2 content? the stream..even though they both have the same surface area, the ammount of agitation is what matters. while the "airhole" may be the only aggitation from the filter in the edge, it is also the ONLY OPENING for gas exchange. which is pretty turbulent, even if not on high flow. the only surface for gas exchange (in AND out) is through the hole getting aggitated constantly. the rest of the water "surface" should be right up against the glass. that is the principle of the whole design. in a tank where most of the water surface is fairly static, less O2 is "put into the system"...O2 wants to be a gas, not disloved into the water, so vaporizes pretty quickly under "flat surface" and is driven off...mixing (agitation) keeps a constant "supply"...inch for inch, i would almost BET the edge has better O2 than a normal tank. think about it.

as far as ease of cleaning goes- WHOLE different story...until they start selling "edge specific" siphons and hoses designed specifically to these tanks.
for me its not about filtration or O2(add an airstone if youre worried)...its about ease of maintenance...even switching substrate would be a NIGHTMARE!!!
my two cents.

 

[OohFeeshy]

They have made some 'Edge specific' stuff, obviously you don't have to buy it because it's easy enough to DIY. The opening is plenty big enough to get your hands in for maintenance, the only trouble you might have is getting in large bits of wood. Since it's not huge, you can easily move your hands around inside the tank to reach all the corners.

Also, size and dimensions of the tank as a whole are better then quite a lot of nano tanks. It's twice the volume of the traditional 3g nano (a tried and tested format), and a bit bigger than the also tried and tested 5g nano.

I would say it's better than the Biorb, for sure.

 

[Curiosity101]

I would say it's better than the Biorb, for sure.

I certainly wouldn't disagree with that!
I think it practically beats the biorb on every level

 

[loraxchick]

defo better tank than a biorb
i really do like the look of these tanks, but imagine changing the substrate
that'd be a nightmare! im the type thats never really happy with how things are set up and constantly re-doing this or that. i guess it would just take some getting used to working in such small opening, which realistically is MORE than sufficient for my small hands.
im happy with my cheap second hand tanks. but an Edge looks really great when its nice and planted! truly awesome in fact. i guess its down to preference. i see nothing wrong with filtration, lighting etc. just have to pick the proper fish/inverts to go into it is all-same as any other small tank.
cheers!