
yet is there someone you know who has a fish tank with filter you know of? I say this because even though your approach to the continuous W/C's are good, your fish (especially the most recent ones you decided to add) are still experiencing NitrItes on a daily basis, this is leaving them more open to sickness or disease in the future. So, if you can't get hold of someones' more 'mature media' from their filter, then it maybe easier to find an option of re-homing them and trying a fishless cycle..... then again, if you're happy doing all the W/C's i wish you the best and hope you get through it 

whoops yep i meant nitrite, ive been doing colossal water changes for 2 days now and the nitrite hasnt changed at all so im pleased with todays results, even though ive just done a test and its gone back upto 0.25 allready![]()