filter with 5w sterilizer OR OTB marineland double bio wheel for goldfish tank?
hi. im thinking of setting up a goldfish tank, while i have a good extra filter i seen a new one on the market which tempted me it's a reaction canister with a built in 5w uv sterelizer , sounds good for a gold fish tank. does anyone have experience with it? in my FWC tank i use marineland canister w/ 0 bypass,and it is good. i just need to hear someone say its a good filter before i spend $ 125 (not bad) but everything adds up.hope to hear from someone, thanks Tabbi
The big issue with goldfish is the volume of waste they produce which necessitates at powerful filter. A UV sterilizer will do nothing about this waste. A UV sterilizer will help clear up/prevent green water algae, harmful bacteria, other disease causing organisms but don't expect it to cure your fish of any existing ailments or prevent parasites like ich. If you can swing it they're nice to have as one more layer of protection but they aren't a cure all.
A few questions about your plans.
How big will the tank be?
How many goldfish?
What kind of filter do you currently have that you were planning to use?
I agree - the UV isn't going to help your goldfish, although it can kill ich parasites and stop green water.
If your concern is just adequate filtration to remove waste, the things you should be looking at are flow rate and contact time with filter media. On a well-stocked goldfish tank, I would want a flow rate of about 15x the size of the tank in gallons. You might want to use multiple filters to achieve this.
my tank is a 50-52 tall
marineland double bio-wheel 200
i'd love 2-redcap orandas, 2-orange orandas and 2-o&w orandas
i would love to raise them to 5-6" and sell them but it is hard to find a store who'll take them. watching them grow that's what does it for me. well of course i would keep my fav's.
I agree with those above to a degree. For UV sterilization you need a relatively slow flow rate to allow for more contact time with the sterilization unit. Uv will as said remove parasites and bacteria that are free floating in the water but it is not all that effective against the ICH parasite due to the life cycle of the parasite which is partially attached to the fish and another part of the cycle where the parasite drops off the fish and falls to the substrate. In both of these instances the UV would be ineffective for it can only remove from the water what passes through the UV unit. It is effective at reducing green water. For Gold fish you would want as mentioned a high flow rate or water turnover per hour thus negating the effectiveness of the UV unit. As others have also mentioned goldfish have few peers when it comes to producing waste. You might be able to raise two goldfish to six inches with another filter such as the one you have and two to three water changes a week along with not overfeeding. IMHO
Does the filter have any markings? I am fairly certain its not a Penguin 200 if it has 2 bio wheels. Older style double wheels are 300 and 330's with the 350 being the most recent one. Even if that's the case that's not going to be enough filtration for a tank full of goldfish. You want to turn over the water A LOT and a 350 will turn over the volume of your tank 5 times an hour on a good day, much less once things start to break in and filter pads are in place. Also, your stocking plan would be overstocked, six gold fish in that size tank is more than most people would recommend. Conservatively you'd be looking at 3, aggressively at 5. Six is doable but it's more vital than ever to really filter the tank.
As much as I love HoBs and Marineland HoBs specifically I just don't see them doing what you need in this case. A canister filter or two is going to be needed to handle that kind of load. I'll leave recommendations on what kind to people more experienced with them than I am.
I just saw a really nice goldfish tank in the "freshwater pictures" section. You may want to take a look. That person has a 660 gph filtration system on a 55 gallon tank. You could ask what model it is if you want. Anyway, that's just my 2 cents.
I like HOB filters, too. On that tank, (stocked with 4 or so big fancy goldfish), I would get two Marineland filters: the Emperor 400 and the Magnum 350 Pro. This would give you 750gph flow rate (roughly 15 times the gallons of the tank) as well as lots of options for filter media and four biowheels to provide tons of area for bacteria to colonize.
thanks alot to everyone who answered. sounds like too much filtration expense for me, im willing to work hard but not emptying media bags,filling media bags buying media bags... .besides every article i read points to serious problems c/ these fish,so ive decided to do a specialized gourami tank.it's a secret for now but after the holidays i will begin and if i ever master my computer skills i will be taking video and photographs of the tank progression.
aquarium project that could be as challanging or even worse but its rewards are much sought after.
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