[Rp Marine]

this is my 20 gallon tank:
2 powerhead
2 gallon refuge that is in the process of setting up
40 lb of LR
2 inch of sand
2 yellow tail demsal.
and a few mushroom.
i'm been doing 5 gallon water change weekly. is this to much or should i decrease the amount? or should i do every other week water change about 5 gallon. remeber this don't have any protein skimmer. thank for the recommandation

[irabren]

Originally Posted by Rp Marine

this is my 20 gallon tank:
2 powerhead
2 gallon refuge that is in the process of setting up
40 lb of LR
2 inch of sand
2 yellow tail demsal.
and a few mushroom.
i'm been doing 5 gallon water change weekly. is this to much or should i decrease the amount? or should i do every other week water change about 5 gallon. remeber this don't have any protein skimmer. thank for the recommandation

If no skimmer than weekly water change 2-5 gallons is good

[Reefland]

I would agree that weekly 5 gallon water changes would be great to continue as long as all parameters matched between the new ASW and current ASW at the time of change.

[Rp Marine]

what peremeter should i test?

[Reefland]

Temperature, Salinity, Ammonia, Nitrite, Nitrate, Calcium and Alkalinity.

[Rp Marine]

if Ammonia, Nitrite, Nitrate, Calcium and Alkalinity is off what can i do? the water i get from is LFS water they make. i get them deliver to me got a friend working there

[Reefland]

You shouldn't have any problems with ammonia, nitrite and nitrate and for your make up water, I wouldn't bother with them; I thought you were talking in general what should you test for.

For make up water for a water change, I would make the the temp and salinity matched and you could use a small bit of any 2 part additive to help bring up the calcium and alk a bit.

Scott Z.

[Rp Marine]

thankz always can count on your for help