When is a fish to big?

My tank has been up for 9 years and the only time in the last 3 years that I have lost a fish (not a clean anemone) they have been pretty large. 3 yrs ago then 2 yrs ago I lost a Foxface each time. I think that they actually got to big and were not able to supplement their diet anymore by grazing. I say this because after the 2nd on died I suddenly had an algae problem. They also were probably 8 inches or so long.

My questions are numerous now on this and first would like some in put on whether or not they can get to big?

I also noticed now that I was researching it, various opinions. I have a Koran that is 6-7 inches long and I am worried that it may just be to big or close to it. Two different sources that I think should be reliable have two different answers. One says 150 gal min tank and the other 55; I got the avg. though at 110 . How can they put a size on a fish when they all vary so much? Is it based on the average adult size?

Also if you spilt hairs on this what is 150 gallon tank (or 55) refering to? Total volome?

I know Tangster will have a say and I'm glad to get it, but what do you all use as your research bible for something like this or for any thing.... reef related?

 

The conscientious marine aquarist is a very handy guide book if you ask tangster he will tell you he doesnt believe in tank size restrictions

 

Ummmm,

I have noticed as fish get bigger...my tank looks smaller...

Why is that?

 

It all depends on the fish and the exact tank. Tangs and Foxfaces like a long tank. They like to be able to swim distances. 110g isnt big enough for adult tangs or foxfaces. You might be able to have one or the other, but not both. I noticed your signature has a queen angel, a 110g is way too small for that too mixed in there. Its time to upgrade tanks or trade all the fish in for smaller ones.

 

The Queen is actually what got me to looking into this more, but at this time it is dwarfed by the Koran. What I have found says pretty much the same thing about both of these(about tank size), and that means my tank is definetly to small. This again would mean that the Koran would have struggled.

However the Koran has thrived and has been in there for seven years, but I do think it is out growing the tank. Which is why I am second guessing the things that I have found out!?!?

Also what you are saying about swimming then is more of a length/size as opposed to size in gallons? So the footprint on my new tank would be as inportant as the size?(Of course it will be bigger!);D