Water changes

Discuss all aspects of freshwater tropical fish and aquariums.

Water changes

Postby L.Poore » Sun Aug 26, 2007 10:36 pm

I wanted to do a topic on water changes. I currently do 30% a week. I would like to see what others are doing and how often filters are cleaned.
Posts: 2
Joined: Mon Aug 20, 2007 2:34 am

Postby Carylnz » Sun Aug 26, 2007 10:41 pm

I only ever clean my filter when the return flow slows down. My last filter clean was 12 months ago (that was a Jebo 819. The little internal filters need cleaning every few weeks as they gunk up faster). I do a water change every 2 or 3 months.
My tank is heavily planted, under stocked, well filtered and has been running for over 10 years so well matured (like me!)
User avatar
Posts: 7478
Joined: Thu Jun 14, 2007 7:37 pm
Location: Blenheim, NZ

Postby liam15 » Sun Aug 26, 2007 11:21 pm

i do a 50% water change every 2 weeks and change the white poly pad in my filter every 2 weeks
Juwel Rio 180 tropical community tank
2 Clown loaches
1 Rummy nose tetra
1 Zebra danio
1 Glowlite tetra
3 Harlequin rasbora
3 Kitty tetras
1 Common plec
2 small syrimps
Posts: 88
Joined: Mon Aug 13, 2007 2:02 pm
Location: coventry,uk

Postby JBC223456 » Mon Aug 27, 2007 12:27 am

Umm... I do 30% water changes every 7-10 1/2 days. My filter only gets cleaned once the water flow has weakened. I just put up my new setup about 3 months ago. Never had to clean the filter yet. :wink:
User avatar
Posts: 282
Joined: Thu Jun 14, 2007 9:42 pm
Location: Louisville, KY

Postby moocowmoneybox » Mon Aug 27, 2007 7:19 am

Rio 400:
I try and water change this every 4-5 days, taking 25%-30% out. This also includes using a syphon to get the waste off the sand & stirring the sand. The white pad in the filter gets either rinsed or replaced (depending how it looks after rinsing!). Carbon pad changed every 4 weeks. Every 3-6 months i will rinse a course and fine sponge and swap their positions over and clean the impellor. every 12-18 months i will syphon the gunk out of the bottom of the Juwel filter box (its a bit of a sand trap).
I also have a Rena XP3 on this tank and that gets looked at every 4-6 months (or maybe when the water flow looks weak, cant really put a timescale on it) but that gets sponges rinsed out and positions swapped, the substrat media gets rinsed and the piece of polywool gets replaced.

Rekord 60:
pretty much weekly water changes of about 50% with gravel syphon. white pad changed weekly, carbon changed every 4 weeks (Juwel have a pack that is 1 carbon + 4 white pads for this filter)
Sponges get rinsed eventually but never at the same time. Impellor gets cleaned about once a year.
Rio 400 12/11/10

You dont need eyes to see, you need vision.
"There's someone in my head but it's not me..."
"Everybody has their vice"
User avatar
Posts: 3239
Joined: Thu Jun 14, 2007 11:54 pm
Location: Hemel Hempstead, Herts, UK

Postby oscar_owner » Mon Aug 27, 2007 5:48 pm

my cousin who owned the tank b4 me said he only changed it every... well i forgot but it was somewhere equal or greater than 2 months and he changed half of the water every ??? months. judging by what u guys are sying i should try to change it alot more often then however often he changed it
OSCAR. R.I.P zebra, and pleco
Posts: 107
Joined: Sat Aug 25, 2007 10:05 pm
Location: Vermont

Postby Carylnz » Wed Aug 29, 2007 9:05 am

A lot depends on the size of the fish. Oscars are very messy fish and need a lot of water changes.
User avatar
Posts: 7478
Joined: Thu Jun 14, 2007 7:37 pm
Location: Blenheim, NZ

Postby madbarb » Wed Aug 29, 2007 11:02 pm


I do a 35% water change weekly and rinse out 1 of the 2 sponge filter pads every 2-3 weeks.
6 pepper cories
16 cardinal tetras
10 espe raspora
1 bristlenose
3 platies
20/25 Cherry Shrimp
Posts: 21
Joined: Wed Jul 18, 2007 4:59 pm
Location: Liverpool

Postby tony54 » Thu Aug 30, 2007 8:03 am

I do a 20% water change each week and also change the white filter pad. About every 3rd week I use a syphon to clean up the gravel and get the gunk out. Also follow the guidelines for the other Juwel internal filter pads as to when to change them (although I do tend to just rinse them out as I don't feel its necessary to replace them quite as often as suggested by Juwel.)
User avatar
Posts: 210
Joined: Thu Jul 05, 2007 12:59 am
Location: Essex, England

Postby JoJoJo » Mon Sep 24, 2007 8:24 pm

I do 1/5 water change & clean the tank inside every 2-3 days. But, I don't do cleaning of the external filter. I haven't clean it for 3 months.

size of tank: 12" tiny tank
external filter, Ehiem 2233
(this filter is originally for another 24" tank)
7 x Tetras
4 x Cherry Shrimps
1 x Java Moss attached on wood
I am from Hong Kong.
User avatar
Posts: 69
Joined: Mon Sep 24, 2007 2:10 am
Location: Cambridge

Postby krekra » Tue Sep 25, 2007 1:02 pm

I do a 25% water change/gravel siphon every 2-3 weeks. Clean my impellers every few months and almost never change my fiter pads unless they are falling apart. My ehiem external filter has been cleand once in the last year. My internal fliter that I have on my 20long tank gets a swish in the removed tank water every time I do a water change.

Just because you can doesnt always mean you should!
User avatar
Posts: 3605
Joined: Thu Jun 14, 2007 6:12 pm
Location: Crownsville MD USA

Postby David » Tue Sep 25, 2007 4:43 pm

I don't really have guidelines, it's really as i think of it which can range from 5 days to 2 weeks. Occasionally i forget about it and do it once a month, but not since i added more fish, then it was just three fish in large tank. I remember about 2 years ago i changed the water every 2 days foro almost a month because i was bored (Summer hols). :oops:
I aim for 30% but again i do as much as i feel like at the time, sometimes it's 10% other times i am taking nearly half the tank out.
User avatar
Posts: 998
Joined: Fri Jun 15, 2007 10:05 am

Postby Tarot1575 » Fri Oct 26, 2007 7:20 pm

I have not done any water changes on my new 29 gallon tank. It has been set up for two months. But I have plants in there. Have never had plants before so this should be a learning experience. In my 75 gallon, I rarely did water changes, just added fresh water once enough had evaporated and cleaned the filters once the water flow was reduced. I have two very big filters on this tank.
Posts: 11
Joined: Fri Oct 26, 2007 6:30 pm

Postby Wolfgirl » Sat Oct 27, 2007 8:43 am

You should still do water changes, despite the filtration and the plants. :)
Don't let your mind wander. It's too small to be let out on its own.
~John Wagner
Site Admin
Posts: 2564
Joined: Fri Jun 15, 2007 3:49 am
Location: Lincolnshire, England

Postby tempest » Sun Nov 04, 2007 8:52 am

I do about 25% water change and gravel siphon every 2-3 weeks, though I've been a bit lazy lately. Should probably do it again soon. I clean the filter monthly approximately, or when it starts making annoying noises.
Tank: 55L; 27 degrees celcius; pH7
1 silver molly & 3 babies
2 neon tetras
1 itty bitty catfish
1 tough clown loach who isn't doing his job
1 orange platy
1 potentially dead Borneo catfish
Posts: 19
Joined: Wed Oct 24, 2007 12:05 am

Return to Freshwater Discussion

Who is online

Users browsing this forum: No registered users and 4 guests