How do you measure your discus?

[DiscusKev]

Do what Auntie Martha do, sketch a discus (at your size preference) and stick it against the glass tank.

OR

Stick a CD against the tank and gauge the size from there, as far as I know, there's only 2 sizes for CD (the mini and normal).

[gerrard00]

I take a picture and crop it down to the exact width of my tank. My tank is 48" wide, so I resize the picture to 480 pixels which works out to 10 pixels per inch.

I then copy the portion of the pic that contains a good side shot of one of my fish into a new image. If that image is 40 pixels wide, then I know the fish in question is about 4" long. It doesn't give me an exact measure, but it only takes a minute or two and gives me a decent estimate.

[cooksa]

I take a picture and crop it down to the exact width of my tank. My tank is 48" wide, so I resize the picture to 480 pixels which works out to 10 pixels per inch.

I then copy the portion of the pic that contains a good side shot of one of my fish into a new image. If that image is 40 pixels wide, then I know the fish in question is about 4" long. It doesn't give me an exact measure, but it only takes a minute or two and gives me a decent estimate.

Holy cow that took a lot of thought, but makes perfect sense. I'll have to try that, too! Thanks.

[Discus-Hans]

Okay 47 posts, mine is 48.

Here we go, the best way, take a net, catch the Discus, take a ruler, put it from the end of the tail to the head, read what you see and..........viola, you got what you need to know

Hans

[YSS]

This is a measurement gone horribbly wrong .... I always eyeballed him to be 7+ inches when he was in my tank and it was pretty close.....

[Jennie]

what happened

[John_Nicholson]

Okay 47 posts, mine is 48.

Here we go, the best way, take a net, catch the Discus, take a ruler, put it from the end of the tail to the head, read what you see and..........viola, you got what you need to know

Hans

What he said....I normally lay mine on a soft towel but that is how you measure a fish......And from what most people post about the length of their fish....a lost art.

-john

[DiscusKev]

I thought it was a COBRA LOL, the pectoral fin looked liek the tongue.

What type of discus is that? It look hmmm, strange, the colour looked dull and the stress bar showing doesn't look good. Correct me if I'm wrong but did it jump out of the tank or something, the face look damaged

[peterhql]

I know, one of the biggest Discus I've seen was only 8" TL and this sucker was huge with just eyeballing it. It was a the Giant Flora at the NADA show, total monster. It could barely turn around in the tank! LOL

My Flora! . You know that flora is really only 7.5 inches TL. I put a ruler up to the tank and waited a very long time. 8 inches if I pulled it out and stretched it though definitely. We as humans love to exaggerate, can't help it. He's still a monster though.
maybe if I hung it by the tail for awhile...

-Peter

[tbone83]

never take them out!!!
tahts just plain stupid
if u can visualize the measurement from a ruler thats the best route, im a cabinet maker so its easy