With water changes and the size of tank I think all will be well ...plus the fish are still small
Cycling my new 225g took a while even with a good filter. I hope you got a plan. Be prepared for it to go cloudy like overnight and WC won't help. Good luck.
Umm, How long have the fish been in the tank? I never cycled a tank as large as a 900 gallon before but the bigger the tank, I'd say the longer the cycle will take. I'm going to educate you because I think you are a little blinded by being inexperienced by your response and I am here to help others and spread knowledge. Cycling a tank normal takes approximately a month to a month and a half. Your fish have only been in the tank for a day or two, that is why you are not seeing any affects yet. First your ammonia levels will spike. Your ammonia levels will spike next week or the week after and ammonia at these level are deadly. They will then drop and will be followed by extremely high nitrite levels. This will take place approximately the following week or week after. These levels are also extremely deadly to your fish. Your nitrites will drop and you will be left with the byproduct, nitrate. Fish can withstand reasonably low nitrate levels and this is why we do lots of big water changes to keep these under check. I like to keep my nitrates under 5-10 p.p.m's. 0 is ideal but good luck with that. The only time that ever happened for me was when I was running a 24 water changing system on top of scheduled water changes. Some will keep their fish in a max of 20 p.p.m.'s but this will have effect on your fish IMO. Not until both your ammonia and nitrite levels are 0 and your nitrates stop rising and level off do you do your first water change. Doing water changes prior to this are no good and will only make things worse and prolong the cycle. Take my advise and put the fish back in the tank that they came out of and properly cycle your tank before you kill all of your fish.
+1 , there's no way that tank is cycled and you risk losing some good fish.
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Twice a day testing is IMHO too close. You could do with every 24 hours
Stunning looking fish.... If only we had the selection of cichla in this part of Australia.
What a great set up... You must be really proud of your efforts.
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Twice a day testing is IMHO too close. You could do with every 24 hours