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I stand corrected....just tested pH and it's dropped to 6.6, no idea why, i have no wood in it,just plastic plants, but this did happen last time, very confusing, anyway at least i did not get any fish today! i will add small amounts of bicarb to try and fetch it back up to tap water levels and...

ok, so i have done the big water change now my cycle has completed, pH has stayed stable at 7.2ish (had to tell with all the colours almost the same!!) for 24hrs, just need to get to the fish shop tomorrow then i don't need to add anymore ammonia!! Delapool. i have just measured the kh/gh (with...

Yeah I have already done that and it stays the same, I caught the 1st crash 1 week into it, the 2nd was after a big water change so I can only think that it was the nitrifying process? I am presuming it is 7.5, API normal pH shows 7.6, high pH shows as 7.4 The only way I can test kh and gh is...

Thanks Delapool, i think that my tank is now cycled!! :) i have had 2 0ppm ammonia and nitrite results after adding 3ppm ammonia, but now i am concerned with the water change as i have done a 90/100% change prior and it crashed the pH, so i was wondering.....to get the nitrates down could i do a...

Hi Guys and Gals, 90ltr tank (approx 82ltr water) 1 x HOB 600l/h with sponge,filter wool and alfagrog 1 x internal filter 300l/h sponge crushed coral gravel and ornaments Temp 30 degree C since start, just lowered to 28c to see if any different Water out the tap: 7.5pH, KH 3dkh GH about 8/9...