Help with 240 gallon tank

I have acquired a 240 gallon tank. As of right now it is not plumbed for a sump. I was wondering if an FX-6 would do the job as far as filtration on this unit or should I use 2 of them or would I be better off drilling out holes for a sump?

I will be keeping stingrays in here so pristine water quality is a must. Ism also going to put 3 or 4 sponge filters in the tank itself. At least that is what I did in my 75 gallon. 2 sponge filters and 2 aqua clear 110's. And 20% water changes every other day in the current ray tank.

To help with load calc I have 3 reticulated stingrays and 1 ghost knife as well as a few tetras to clean up any uneaten food. (Don't know how long the tetras will be around though).

Any advice would be much appreciated. Thank you in advance.


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rodger said:

Unless you have a non-standard size 240, it isn't a large enough footprint for rays. You should drill it anyway. A sump is a much more versatile filtration system and easier to maintain.

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It is a standard size 8 x 2 x 2 I will be getting another larger tank later, but the price was right for this tank and it is way bigger than the 75 gallon they are in now. Also my largest ray ATM is only 6 in in diameter.


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