[Zapins]

You can use a bucket if you want to be super safe.

I personally use a python to add water directly to the tank and add the dechlorinator in small amounts as the tank is filling up. I do 50% changes in my 90g tank like that.

 

[Italionstallion888]

You dont mess with r/o zapins?

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[Zapins]

I've got an RO system set up at my home in CT to my auto water change system along with 110g of RO water on reserve, but not at my Philadelphia apartment, so I use city water here and a mix of RO/well water at home.

 

[Italionstallion888]

Which do you find gives you best results, I was doing all r/o but started to cut my tap with it. I cant see much of a difference and its been 3 months. My nitrates are now 40 instead of 15. Im doing 75 tap 25 ro.

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[tattooedfool83]

Yeah true, I've never given it much thought. I have 16 tanks running and have only lost a handful of fish. But I like the python bc this tank only sits a couple inches off the floor so can't siphon to a bucket. Guess from now on I'll give the python to a bucket a go and dechlor from there

 

[Zapins]

I've found they both give good results as long as all nutrients are present, though unless you have something wrong with your water (high heavy metals/GH/KH) then I'd advise using tap water since it is cheaper and easier to get. I suppose if you are doing experiments that require close monitoring of the water parameters or growing soft water species then RO is the way to go.

 

[plantbrain]

The cases where Ca++ limitation can potential occurs: PURE RO heavy water change users who do not add Gh booster back and folks that also do not dose any GH booster and also have a salt based water softener or resins..

In either case, adding a little bit of GH booster will quickly rule this issue out.

You are not dosing correctly if it is actually a Ca++ issues, those pics look just like CO2 deficiencies to me.