How long does New Tank Syndrome last?? Tank was started in March and 2 of the original fish are still alive. We have lost probably 6 fish no to include a beautiful angel fish this morning. My Yellow Watchman Goby looks white almost and Damsel is swimming at the bottom. We religiously do weekly water changes. 5 gallons for a 36 gallon tank, and clean the filter out once a month. I have a Seachem ammonia badge that reads 0.02. Only thing reading more than 0 on test kit were Nitrates at 20 but that was before a water change. We did a water change and cleaned filter yesterday. Today angel is dead. Lost a Dottyback and Hawkfish last week. a Clown about a week before that. Angel had white spots that look almost like ICH but he's the only one with white spots. Getting really frustrating as I am not sure what we are doing wrong. Recently set up a 90 gal but I'm just ready to give it up at this point.
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-- I ended up reading some time later that the sandsifters can be quite difficult to keep in a new tank due to lack of 'food' in the sand, etc and can require dedicated feedings to keep healthy... This can apply to many types of fish, some fish do require a more 'established' tank for food and/or alternative feeding methods to ensure they stay healthy.
The Singapore Angel gets to 8 inches long, so I don’t think it belongs in anything below 100 gallons and a 4-foot tank



