PDA

View Full Version : Tell me how many gallons you change out weekly?


Haire
05/27/2013, 05:22 PM
I have a 16gal nano with probably 12 gallons of actual water ( rock taking up the other 4 gallons) It seems to me most of you recommend a weekly water change. I'm wondering how much water though? or the percentage? So far I have been doing a 2 gallon every week. This takes it down to almost 1/4 of the water from the top.
thanks!!

nickg
05/27/2013, 05:27 PM
I have a VERY similar setup. I do 3 gallons a week. I have great success with that amount.

Jon B
05/27/2013, 05:28 PM
I've had my 13 gallon nano running for about 7 months now, and I've been changing 10% every second week. That's about 1 gallon every other week. I've had absolutely no problems; params all staying good, and coral growth is good.

Your changes of about 20% should be more than enough.

Coralobsessed
05/27/2013, 05:31 PM
I have a total water volume of over 300g and do 25g weekly..

Wills612
05/27/2013, 06:45 PM
30g actual water and change out 8-9g weekly.

pjb9166
05/27/2013, 08:07 PM
30 gal I do 5 gallons per week. I think I have to up it awhile.
I'm having a problem with what I think is diatoms. It's a clear/brownish stringy slime. It's on some of my rock work and some of my substrate.

Stepho725
05/27/2013, 08:48 PM
Ive got a biocube 29 and do 5g every 1-2 wks.

fishouttawater
05/27/2013, 09:15 PM
Aquapod 24, no skimmer, 5 gallons every 2 weeks. Nitrates, ammonia zero. Have some macro and lots of xenia.

Cloudburst2000
05/28/2013, 01:57 AM
On my 16g (probably closer to 13g or so), I change out about 4-5g per week. I basically do one bucket worth of water.

dymazty
05/28/2013, 02:48 AM
94G sps tank, No skimmer or etc, makro algae and natural filtration change 3G every month. Nitrat 0 Posphate 0

Cloudburst2000
05/28/2013, 03:49 AM
94G sps tank, No skimmer or etc, makro algae and natural filtration change 3G every month. Nitrat 0 Posphate 0

It's a lot different between a nano tank and a larger system. They don't tend to require as frequent water changes as a nano tank. Don't think a 94g tank qualifies as a nano. Don't want people to think they can normally get away with that on a nan tank.

On my nano, I change out 4-5g weekly on my tank which has been up and running about one year. However, my brother-in-law has a 14g biocube and he only changes about 5g every two to three months. It doesn't seem to hurt his tank as he had no algae issues. But I think this has more to do with his tank being running for several years. We just think that the live rock and sand are very established so he can go longer between water changes. If I tried that with my nano, I'd have algae galore.

CHG107
05/28/2013, 05:04 AM
Biocube 29 and do a 4-5 gallon change every 2 weeks.

fewskillz
05/28/2013, 07:29 AM
I'm changing about 2 gallons a week out of my 10. I think I would be fine with a gallon, but it takes closer 2 to siphon off everything I want to siphon. I'm too lazy to bother using a filter sock and dumping what water I don't want to change back into the tank. The larger water change certainly isn't hurting anything.

calistyle
05/28/2013, 10:54 AM
34G nano (25G water volume). I do 5g weekly.

cloak
05/28/2013, 02:29 PM
20 gallon DT, 10 gallon sump. Probably about 22/23 gallons altogether. (minimalistic aquascape) I change 5 gallons a week. I could probably do less, but those 5 gallon buckets are just so convenient.

brandon429
05/28/2013, 04:37 PM
I change all the water weekly. the tank is left empty for 10-20 mins while I work on things, frag, zap a little algae etc. simulates low tide which exposes corals and live rock for hours and hours. the best benefit is adapting the system to not being so delicate. brings out adaptivity in corals and shrimp to hang in the air as I please lol.

solitude127
05/28/2013, 04:54 PM
About 25g total volume and I change 5g weekly. I have 2 percs, firefish and YWG with a skimmer and GFO

Stepho725
05/28/2013, 05:04 PM
I change all the water weekly. the tank is left empty for 10-20 mins while I work on things, frag, zap a little algae etc. simulates low tide which exposes corals and live rock for hours and hours. the best benefit is adapting the system to not being so delicate. brings out adaptivity in corals and shrimp to hang in the air as I please lol.

K....so you obviously have no fish huh? Or i hope not? lol. The shrimp are okay in no water?? What size is this tank?? You have boggled my mind!

brandon429
05/28/2013, 05:24 PM
http://www.youtube.com/watch?v=8Fk8R3clElQ

here's a vid of the actual event. coral banded left flopping on the rocks lol

no fish, 7 yr old tank packed w corals. if the system was any larger these giant wc would be impractical


to add to the insult, 35% peroxide was added internally to clean the glass. then, the tank is refilled again and immediately drained and refilled again. I think my tank could handle straight jim beam added overnite w no probs. adapted fo sho.

Stepho725
05/28/2013, 05:54 PM
So...is there any flow in there? What is it a half gal? Geeze....more power to ya!

brandon429
05/28/2013, 05:57 PM
that is a one gallon wal mart vase all scratched up from years of cleaning with a scouring pad before I found out that peroxide use when drained cleans everything and there was no need to scour everything. the scratches are so bad you hardly cant see through it when drained its quite sad...but, when filled its a clean as a whistle!! lol

it has massive flow from two airstones ran off a pump meant for a 100 gallon tank lol I think I turned them off for this filming event though, as the tank drains they make a bunch of salt creep if left on. thanks for checking it out man!
B

even though the tank is one gallon, it has carry over science that applies to larger tanks:

-my live rock is chock full of sponges and expected growth after that long. zero harm in air exposure
-no filter bacteria on live rock will die from brief exposure to air
-corals...there are 16 kinds in this bowl, the kind that dont mind lol
-dealing with a deep sand bed and large water changes. my sb is 6" deep and if disturbed might emit a cloud of concerning waste. to remedy that, I simply pour slowly and dont kick things up

this works on larger tanks as well, though they tend to have machinery that prevents the need for such large changes.

premilove
05/28/2013, 08:54 PM
30 gal I do 5 gallons per week. I think I have to up it awhile.
I'm having a problem with what I think is diatoms. It's a clear/brownish stringy slime. It's on some of my rock work and some of my substrate.

Could be dinoflagellate

TimothyJ
05/28/2013, 09:27 PM
10 gallons every two weeks on a 30 gallon tank (no sump)

saf1
05/29/2013, 03:56 PM
None.

2 Oceanic BioCube 29's. I'm honestly lucky if I do a water change every other month. One tank has 3 rose bubble tips. Started with one and it has split twice now and over growing the tank :( This tank has a metric done of green star polyps, blue clove polyps, and a dark orange zoa.

The second tank is younger and has a rather large rescue hammer, baby hammer frag, few monti's, gold leather, green star polyps and a birds nest. Both tanks are running LED's.

E.intheC
05/29/2013, 05:20 PM
I change 4 gallons each week (usually). Sometimes it's every other week. Tank is a 34 gallon Solana Cube with a small clown, firefish, cardinal, and small anthias (who is very well fed and starting to put on some weight).

Tank is barebottom, and full of LPS mostly.

Hampton
06/01/2013, 08:35 AM
25 Gallon Round with 25 Gallon Sump

Either:

1, 8-gallon change per week, or better,
2, 5-gallon changes per week