Goldfish Tanks And Filtration

[RandomWiktor]

I'm in the process of purchasing a 75g aquarium for my two goldfish, who are growing expontentially and clearly need new digs. The tank is all ordered and ready to go, but in researching filtration options, I'm getting very mixed reviews and don't really know what would be best. Since none of the reviews were actually from goldfish owners, I thought I'd see if anyone here had better suggestions.
The main types I'm seeing are canister and hang-on. I've heard people rave about Fluvals, yet the more I read, the more I find serious complaints like leaks, difficult assembly, and poor biological filtration. Since I am hoping to cycle this tank, biological filtration is quite important to me. Yet at the same time, I've heard good and bad about hang-ons. My experience has been largely with hangons so far, and I find them to clog easily and not really meet my filtering expectations. They are, however, pretty easy to assemble, clean, etc.
So... anyone want to suggest a good type or brand of filter? I wanted to start set-up this week, but I first want to make sure I'm getting the right thing if I'm going to be spending such a ridiculous amount of money on two ten cent fish.

 

[The-Wolf]

Firstly
well done for getting such a big tank for two goldfish.
I wish more people would.

secondly
IMHO goldfish need a filter that has a turnover of at least 10 times the volume per hour,
so you should look for a fliter rated at 750GPH.

I myself wouldn't touch fluval with a barge pole, Eheim is the best but other brands are worth considering, like Jebo etc. for a tank of 75g I'd be looking at Eheim pro or Eheim pro2, rather than classic or ecco filter.
It all depends on your budget and the availablity in your area. Ebay might be worth a look for second hand eheims.

Also there is no reason that you can't have more than one filter, perhaps a cannister doing the main filtration and a good internal/hob for additional filtration. Again this would depend on your budget.

Look forward to the pics when it is all up and running.

 

[ksam]

lovelly sized tank I'm not a keen fan of HOB filters for goldfish since they're total poop machines, lol, and definetly prefer external canister filters. I'd recommend looking for one that does twice the volume of your tank or even better going for 2 seperate filters. I have a 120litre goldfish tank (planted aswell) and I have a fluval 202 external, fluval 4+ internal & and Eheim internal (rated for 120litre tank), but still the filters can quickly clog!!!

I have to admit that I really don't like the fluval external, tha previous one burst open and flooded the room, and once they start to clog then the water misses all the media and takes a "short cut" across the top and back into the tank with out being cleaned . I have a Eheim Pro II on another tank and it's brilliant, incredibly quiet to run, huge area for filter media (plus really good media suplied with it!!) and it's never clogged, but needs almost no maintance on it just a case of occasionally changing the filter wool at the top (takes two seconds and it's ready to go again). The Eheim filters are definetlly worth the money in the long run