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Newbie needs advice - brand new tank, to water change or not to water change?

Hannah

New Member
Joined
29 Mar 2021
Messages
6
Location
Oxfordshire
Hi everyone,

So I spent the weekend setting up my new 310l tank that will eventually house discus, but I've read conflicting things about water changes. On the fishkeeping side of things I've heard from several experienced discus keepers that you should not carry out water changes at all until the filter is fully cycled, as removing ammonia/nitrates from the water column can cause the cycle to crash altogether. However, just about every aquascaping resource I've looked at - including GFs' book - it says to carry out large water changes every day to begin with. I've used Flora Base Pro as my planting medium and the tank contains lots of anubias, mosses, java ferns, amazon swords and vallis.

Help - what do I do?!
 

Nick potts

Member
Joined
25 Sep 2014
Messages
600
Location
Torbay
Large daily water changes for me.

On tanks with no plants i would not do water changes until the tank had cycled
 

dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
12,093
Location
nr Bath
Hi all,
On the fishkeeping side of things I've heard from several experienced discus keepers that you should not carry out water changes at all until the filter is fully cycled, as removing ammonia/nitrates from the water column can cause the cycle to crash altogether
Have a look at <"Dr Timothy Hovanec's comments about Bacterial supplements">. It summarises <"where were are now">, and just emphasises how much the <"past is a different country">.
On tanks with no plants i would not do water changes until the tank had cycled
This is the <"Mbuna scenario">, as soon as you have plants things are very different. I'm never going to try to <"keep fish again without plants">, plants really are <"the gift that keeps giving">. Even if you keep herbivorous fish you can use planted trickle filters etc. to physically separate fish and plant.
I've used Flora Base Pro as my planting medium and the tank contains lots of anubias, mosses, java ferns, amazon swords and vallis.
Perfect, don't <"add any ammonia">, <"add a floating plant"> and change some water. Personally I add Ceratopteris thalictroides (often available at Pets@Home) and Amazon Frogbit (Limnobium laevigatum), but I'm a <"Frogbitaholic">.

cheers Darrel
 
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