Originally Posted by Silock
So, I've been perusing Craigslist. Seems like there are a ton of deals on 100+ gal tanks.
I want to do freshwater, though. I want Dwarf Hairgrass to cover the bottom. I love the way it looks when it's all over. So lush and green.
And then I'm going to just put a bunch of schools of peaceful, non-aggressive fish in there, like Neon Tetras, mollies, danios, killfish, a betta, discus, fancy guppies, gouramis, and swordtails. I've had cichlids before in the same tank with barbs, and they did okay. So, with such a large tank, I might be able to get away with one or two, but if I do, they'll come dead last.
What kind of filtration system should I go with? And heater? I've been reading that I should probably stay away from an undergravel filter because of the size of the tank.
Does that sound like a good plan?
Having live plants in your tank is much more difficult than it sounds. The conditions have to be very good, and many fish like to unroot the plants. But once you establish it in your tank, it really helps to maintain the bio aspect. It's certainly doable. But just expect some growing pains in getting it established.
Betas don't play with others very well at all.
Discus are one of the most difficult freshwater fish to keep. They're very sensitive to water quality, and usually require weekly water changes at the least. Plus they're pretty expensive, and they usually recommend having quite a few in the tank as they don't do well by themselves. I've had several friends try Discus, and they always ended up losing money and killing them. But damn they sure are beautiful fish.
No offense, but I don't really like your proposed mix of fish. They're all boring starter fish you'd find at any Petsmart. None of them will get very big, and few of them will have any "personality" that you'd see in bigger fish. They're dumb colony fish.
I think a cichlid tank is definitely the way to go. You can have a huge degree of variety that way. And it's really not as hard as you'd think to have a bunch of different cichlids in the tank without having an aggressive atmosphere. There's infinite different species of non aggressive cichlids that would look much better than your normal tetras, mollies, etc. I have a variety of different cichlids in my tank, and I have no aggression or fighting at all. I've got a large Jack Dempsey(6"), a large green severum, 2 African cichlids, a parrotfish, 2 Peacock cichlids, 2 plecos, and a couple Cory cats(hilarious little guys). And it's a very peaceful tank. All the fish have beautiful fins and rarely even chase each other in the tank. Don't be scared off by cichlids...
Take a look at some of the varieties of cichlids here: http://www.livefishdirect.com/store.php?cid=32
I have a friend who recently setup a tank with lots of Lake Malawi Mbuna cichlids, and man is it an impressive tank! Very colorful and unique fish.
Lumpy nailed the filter info.
Whatever you choose, let us know how it goes...