Avoiding swings in a nano?

[mallorieGgator]

How should I top off my 20L nano to avoid quick salinity swings? I was thinking if dripping in water into the hob filter using small tubing tied into a lose knot. Any other ideas?

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[Zoanthkid]

That should be more than good enough, I have a 12 gal n pour my top off water in slowly with a gallon jug on top of the powerhead, nothing in my tank seems to mind too much.. fish even come up to swim in the fresh water every time. We drip acclimate fish and corals so dripping into your h.o.b. filter can't be much different if it's even as drastic of a salinity swing as acclimation. Any a.t.o. I've ever seen puts water in faster than a drip system anyways.

 

[aquabull]

i have a cute little purple cup with an airline valve super glued in it's fanny! Supplements are mixed (separately) in with R/O, and a very slow drip is started, without any sucking! (Cup does not have to be purple!)

 

[Reef Breeders]

An ato would be the best option, there are tiny floats available

 

[mallorieGgator]

An ato would be the best option, there are tiny floats available

I'm poor so it's a bad option for me. lol!

 

[Tinola]

autotopoff.com nano double switch for about $55 connected to an aqualifter

 

[mallorieGgator]

I'm literally living off of ramen noodles and soup right now. lol! Just graduated from UF so I'm still poor.

 

[Tinola]

LOL, I'll be in your position in 2 yrs!
Just do a gravity ATO system then. It'll be pretty cheap I bet.

 

[MattL22]

If u top off every day I wouldn't worry bout just pouring it in slowly