Originally Posted by Cody
Angels will reach 6" long and 10" tall, and both a 30G tank and 20G tank are not suited for them, unless the height is bigger than the length. (Height be AT LEAST 24" tall; bare minimum).
My angels are currently pretty small. I did read they grow bigger though. They are also really calm fish. They mostly just float in the middle of the tank, or to one end of it. I rarely if ever see them as not having enough room at their current size and activity levels. But since you mention it, I do suppose they might be a bit happier with some more headroom.
Don't get me wrong. I do respect and provide for my animals' needs within the best of my abilities. I consulted my aquarium guide and a couple pet store employees before buying them. And I greatly appreciate any input from the people here, especially you bringing to my attention that, since angels are middle swimmers, they need the large middle area provided by a 24" tall tank.
I'm just starting out with the two aquariums I've had sitting to the side for years. I've moved them from house to house without ever using them until very recently, so I plan to get my use out of these 30 and 20 gal tanks for now (I'm not being a smartass, just saying). I make plenty of money in my line of work to upgrade to a 55, 75, or maybe even 125 gallon tank as my experience, devotion, and fish all grow into a larger setup. I might even build my chameleon a wire cage with tree in the corner, leaving my 75 gallon tank vacant for whatever are my biggest/most demanding fish.
So let's just say that the angels aren't all that picky about tank length since I hardly ever see them sprinting across the entire tank length. They do want height though, as they grow. The 20 and 30 gals are the same height; what the 20 lacks in side to side length, it sort of compensates with an extra inch from front to back. The 30 gal is a larger tank with a slightly more agressive [so to speak] community. If I put the angels in the 20 gal, they will be the largest, most dominant fish, over the tetras and ghost catfish (just for example, still gotta do a bit more research on the compatibility of the ghosts w/ tetras and angels. but I do want some ghost cats somewhere). So there's my stock of fish and active tanks, in a large nutshell.
I've never seen any of my fish fight between species. I may see a barb chasing another barb, or a gourammi after another gourammi; but never gourammis fighting with the danios or anything like that. But nevertheless, gourammis, barbs, and my rainbow shark are all labeled as semi agressive. They are all comparable in size enough to do damage to each other if they did fight (i think gourammis would win). So...accounting the apparent low activity of the angels, do you think they would be happier in a smaller but wider tank with no other agressive fish, or in a larger tank with the rest of the semiagressive fish?
Well, I hope all that made sense. I'm pretty tired and starting to ramble. I'll letcha move on before you get tired of me, if you're not already. Thanks for the insight and I'll be looking out for an affordable larger tank.