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Old 06-06-2011, 09:09 PM   #1
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2 HOB filters for 120g tank

I am about to get a 120g 60x18 (or something close) and just till I can afford a larger canister filter should I drop a smaller job filter (2 rated for 30-40g) to sub the canister. Or should I just trust to the one canister. Its a planted tank and I am getting it in full stride. Just draining it long enough to move it 20 miles on the back of a truck.

The canister is a f205 rated for only 75g
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Old 06-06-2011, 09:10 PM   #2
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a fluval 205? That's nowhere near enough. You need at least a 305 and 405, xp3, fx5, or eheim equivalent. Those 3 filters won't even be sufficient IMO.
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Old 06-06-2011, 10:11 PM   #3
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Yea was afraid of that. Guess I am not going to be able to wait till next month. 405 here I come. Good thing thatpetplace is running a 20% sale on them.
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Old 06-06-2011, 10:14 PM   #4
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Agree with rookie. Better to over filter than under. Even with the 405, I would run the HOB's for seed material or polishing the water with floss in them.
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Old 06-06-2011, 11:11 PM   #5
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A single 405 won't cut it IMO. The realistic numbers would be:
205- Up to 30g
305- Up to 55g
405- Up to 75, maybe 90g
FX5- Up to 180g

You might get by with the 405 and 205, but I'd keep the two HOB's on as well.
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Old 06-06-2011, 11:20 PM   #6
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If u go by flow rate I have always gone with about 10x the filtration in gph so take the total gph and divide by 120 u want it to be around 10 IMO but more is better than too little so.... Go over won't hurt anything lol
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Old 06-07-2011, 12:24 AM   #7
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Quote:
Originally Posted by mfdrookie516
A single 405 won't cut it IMO. The realistic numbers would be:
205- Up to 30g
305- Up to 55g
405- Up to 75, maybe 90g
FX5- Up to 180g

You might get by with the 405 and 205, but I'd keep the two HOB's on as well.
+1 better keep the 2 HOB with Ur 405. Two canister will get abit complicated an messy IME/O.
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Old 06-07-2011, 12:32 AM   #8
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Here is the best deal if have ever seen! http://www.amazon.com/gp/aw/d/B000I1...030744-1648427 (I payed 200$ for my fluval 305)
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Old 06-07-2011, 08:31 AM   #9
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Holy crap! That's cheap
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Old 06-07-2011, 08:58 AM   #10
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Here's a great deal too

Amazon.com: Fluval FX5 External Canister Filter: Kitchen & Dining
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