I saw this web site my accident: http://www.freshwateraquariumcenteronline.com/freshwater-aquarium-maintenance/. It is run by a professional and the web site says that you can feed  your fish up t0 2 or 3 times a day if you follow the rule of thumb that you give them as much food as they can eat in 3-5 minutes. I find this disturbing. Overfeeding is one of the main causes of fish death and non-working aquariums. And to me giving food 2-3 times a day is clearly over feeding. The guy running the site calls himself a professional, but that kind of advice is pure wrong in my opinion.

I feed my fish once a day – maximum. I give them enough food in the morning which they can eat in about 1 minute. Fish have very slow metabolism and they can endure a week without food. While I don’t encourage you to keep your fish without food for a week all the time, it tells me that giving good 2-3 times a day is just too much. This makes your water cloudy and leave you probably very fast with high levels of nitrates since the filtering system cannot take all the excess food and fish urine as a result of too much feeding. The website talks about vacuuming excess food from the bottom of the tank if the fish don’t eat all the food you give them. While I totally agree with this, I have never had the need to vacuum the bottom of my tank just because my fish couldn’t eat all the food. I believe this tells a bit of the statement he gives and that it is wrong. It is only by grave mistake you need to vacuum excess food from your aquarium.

So please bare in mind the simple rule when feeding your fish; too little food is better than too much. Always.