Latest topics
» Which option would you choose?
Mon 20 Nov 2017, 22:02 by Pterophyllum

» Need help theirs something wrong angelfish are acting really strange
Wed 13 Sep 2017, 10:37 by Pterophyllum

» Hi all. =)
Sun 03 Sep 2017, 15:52 by Pterophyllum

» Disaster has struck!!!
Thu 24 Aug 2017, 11:32 by Pterophyllum

» Is there anybody out there?
Wed 16 Aug 2017, 18:55 by Pterophyllum

» Hello everyone - just joined the forum.
Wed 16 Aug 2017, 18:53 by Pterophyllum

» Scottish Members.
Wed 16 Aug 2017, 14:36 by wildreddeer

» Keeping angelfish fry in the parents tank
Tue 15 Aug 2017, 09:30 by Pterophyllum

» Just Testing
Wed 02 Aug 2017, 21:19 by bridgegirl99

post deleted

Mon 24 Jul 2017, 16:09 by fredothedictator

post deleted

Comments: 2

Sunset Koi Angelfish

Sun 16 Oct 2016, 19:30 by MatthewHalliday

Shalom Everyone I want to buy some Sunset Koi Angelfish I bought one …

Comments: 3

WANTED Bugarian Greens/Albino Dantum

Sun 19 Jun 2016, 02:04 by Toondog

As the title suggest I'm trying to track down some Bulgarian Seal …

Comments: 0

free counters

Air driven sponge filters and pH

View previous topic View next topic Go down

Air driven sponge filters and pH

Post  gibbo156 on Mon 23 Jul 2012, 16:27

I use RO water remineralised to pH 6.5
In my display tanks and other tanks that have cannister filters i have no problem with this.
I am intending to set up a rack of breeding tanks and in an attempt to save on electricity bills etc i am going to use air driven sponge filters. The idea being that i can run a number of tanks from one air pump and only use the same electricity as one cannister filter.

I have begun aging and cycling some sponge filters in one of the tanks that is mainly filtered by a cannister filter.

My problem is that when i turn on the air pump to pull the water through the sponge filter the water disturbance immediately causes the pH to start rising.
I understand the process, and any disturbance of this kind, particularly when bubbling air through the water column will cause an increase in pH.

So what do you do ?
The tank in which i have begun aging a sponge filter has risen from pH6.5 to pH7, higher that i want for my Angels, discus or my Dwarf cichlids, and it looks like it is going to go higher still.

Any suggestions ?

Any advice or guidance gratefully received.



Posts : 144
Join date : 2012-03-08
Location : Here

Back to top Go down

Re: Air driven sponge filters and pH

Post  Pterophyllum on Mon 23 Jul 2012, 17:24

Turn the air flow to the filter down, what matters is the flow of water through the sponge, a lower rate of bubbles might actually result in more water flow. Position the outlet from the filter as close to the surface as possible so that there is as little disturbance on the surface as possible. If this doesn't work, remineralise the RO to a lower kH, but, unless you're breeding wild fish, a ph of 7.0 is fine for the angels.
For the dwarf cichlids use some bog wood in the tank (you can do this for the angels & discus too). not only does it slowly leach tanins which are acidic, as it slowly decomposes it helps to add CO2 to the water which will increase the acidity.

Blessed are the cheesemakers!

Posts : 1554
Join date : 2012-02-08
Location : Gloucestershire

Back to top Go down

Re: Air driven sponge filters and pH

Post  gibbo156 on Mon 23 Jul 2012, 18:58

Thanks again.

As usual the answer will probably be a combination of all of those suggestions.

I am even considering un-planting my display tank so that i don't use CO2 injection on that one, then i might be able to return to all of my tanks having the same water parameters.




Posts : 144
Join date : 2012-03-08
Location : Here

Back to top Go down

Re: Air driven sponge filters and pH

Post  Sponsored content

Sponsored content

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

Permissions in this forum:
You cannot reply to topics in this forum