So I've been working on setting up a 125g tank lately (and I'm very close. Will have a progress thread up soon as I'm only 2 pieces of equipment short and should only be a couple weeks) and also a 10g both salt. I keep getting recommended very high gallonage filters for the smaller tank (which of course is smart with any tank) and a lot of equipment. Why is it that I see 3-10g salt tanks with nothing more than a power filter that seem to be doing great?
Heres what made me ask this. I wanted to setup a 10g tank with seahorses (now maybe considering something different though) and I was recommended high GPH filters, protein skimmers, and other stuff but then I see this ~3 gallon fluval edge tank that has 2 very small clownfish in it, hosting nems, and the nems and liverock and fish seem to be doing excellent with no extra lighting or filtration besides what is built into this fluval edge. I'll include a pic

the one I saw was more up and down (and smaller than the one pictured) and the nems were living at the top but still how is this working? Is it really that easy? I almost bought a fluval edge today that looked like the one pictured. It was 6g and I want to know if I really could have had a saltwater setup in it as it comes and why with other small SW tanks there's more involved with what I've been recommended to buy and such. Is there some different way it is handled or something? Is it just more experienced people that can get away with that? Just very intrigued by this.

Heres what made me ask this. I wanted to setup a 10g tank with seahorses (now maybe considering something different though) and I was recommended high GPH filters, protein skimmers, and other stuff but then I see this ~3 gallon fluval edge tank that has 2 very small clownfish in it, hosting nems, and the nems and liverock and fish seem to be doing excellent with no extra lighting or filtration besides what is built into this fluval edge. I'll include a pic

the one I saw was more up and down (and smaller than the one pictured) and the nems were living at the top but still how is this working? Is it really that easy? I almost bought a fluval edge today that looked like the one pictured. It was 6g and I want to know if I really could have had a saltwater setup in it as it comes and why with other small SW tanks there's more involved with what I've been recommended to buy and such. Is there some different way it is handled or something? Is it just more experienced people that can get away with that? Just very intrigued by this.
