Tropical Fish Keeping - Aquarium fish care and resources

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-   -   internal UV filter recomendation? (

MoneyMitch 04-09-2013 09:39 PM

internal UV filter recomendation?
so i am having a headache with greenwater algae and don't feel like waiting forever for it to clear. i was looking at submersed uv fitlers but the LFS only had one. wanna see if anyone can recommend something?

i have a 55gal and want to stay away from inline uvs since i don't have anyway to drive it. and don't want to have to buy a pump and a uv light.

jaysee 04-09-2013 10:37 PM

The green killing machine will do the job. It's an all in one.

fish monger 04-10-2013 07:14 AM

Petco sells The Green Killing Machine. Even if your local store doesn't have it in stock, I noticed orders arrive quickly to Ohio with standard shipping.

MoneyMitch 04-10-2013 02:37 PM

that's the one my LFS has, read a lot of reviews that the replacement bulbs are hard to find and the unit itself gives out after only a few months. (seals go bad) any alternatives out there?

fish monger 04-10-2013 06:09 PM

Check out the Aquatop Submersible UV Sterilizer on Not knowing anything about UV, that one sounds attractive to me. Free shipping too. Usually takes 5 days from there (San Diego).

MoneyMitch 04-10-2013 06:10 PM

will do thanks!! checking now~

MoneyMitch 04-10-2013 06:23 PM

seems all the submersible uvs have the same issue with o rings giving out. I found this one Aquarium Ultraviolet Clarifiers & Sterilizers: Aqua Medic Helix Max UV Sterilizers the 5watt is good for up to 75 gallon tanks. I have a maxijet powerhead that can be converted to a utility pump and has like 175 ghp rating. think I could get away with the combo?

jaysee 04-10-2013 06:27 PM

No. There are 2 components of UV filtration - exposure time and the bulb wattage. The stronger the bulb, the more (and more quickly) it kills. Exposure time is how long the things spend in front of the bulb - the longer the better. The best UV filtration is a stronger bulb with a lower GPH. The green machine is like 50 gph, for reference. The worst UV filtration is a weak bulb and a high turnover rate.

MoneyMitch 04-11-2013 03:16 PM

makese sense there J, I did find a 9 watt unit rating for 200 GPH max flow has a internal spiral flow pattern for extended exposure. the 9 watt unit is a little bigger and only like 9$ more.

jaysee 04-11-2013 05:26 PM

is it turbotwist? 200 gph is way to much. If the pump is not part of the unit, then you can get something considerably less, too get the maximum benefit from it's use.

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