How Many Gph Is Necessary For My 20g Tank?

Live Love Aquatic Life

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I got an Axolotl for my 20 Gallon tank last week and I admit to having bought it on impulse. Not my proudest moment, but I managed to set up something acceptable for him until I could actually scape and design the tank. The current filter is a small Sponge Filter which does its job but I’ve been wanting to switch to Canister Filters on all of my tanks for more media storage. I’m on a budget though, and need a Canister that will do the job in terms of GPH without costing me a fortune. There is one I saw that is 106 GPH for a price that I wouldn’t mind spending. Is that suitable for a 20g Axie tank, or should I opt for more?
 

75g Discus Tank

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I’m not sure about axolotls care, but 8-10x the gph of the tank water is good.
I would opt for a 200 gph filter.
 

aussieJJDude

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Agreed with above, I would do more.

I would also look into the sunsun brand if you haven't already... many have had good experiences with it and its rather cheap.
 
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