30 to 55 Gal UPSIZE

I would not worry a bit, if you want to go with your feelings, go with them. Obviously you've been keeping tons of fish happy in a 30g.

What I did with my tanks when I downsized or upsized (blah blah blah)

I moved all of the water/fish into a stock tub etc etc and then tore down a tank then when I was ready to move them into a different tank I did that. If you don't have pets/and the lady doesn't mind dealing with a kiddie pool or stock tub (can easily borrow someones at this time of the year for some that don't use them indoors as you can borrow my 110g that's sitting unused outside by the way

The tubs/pools are 100% better than dealing with different buckets/heaters to keep them heated up/aerated if your house is cold.

Above suggestions are very good. I also wouldn't save any water. I've done a few tank upgrades in my day and I never keep any of the water. I've never had any issues. Filters and substrate are particulary important.

Do NOT try to cycle the 55 with a few goldfish. That could have a lot of potential problems. Think of the move as nothing more than a big water change.

Could there be problems? Sure any time you move a fish you create stress, but it shouldn't be too much. I'd personally go with a 75 rather than a 90 but if you have had success with a 30 I'm sure you'll be fine with a 55.

addiction. beware...It happens to the best of us.I suggest keeping the 30 and getting the 55 as well.

GREENWOOD wrote: Guys;
Would there be no benefit from using the balanced water from the 30 as well as aging 25 more and than adding dechlor.

Do you see a downside to using the 30's H20??

I always age the water and declor....have NEVER had one problem with lots of scaleless species.

I wouldn't use the old water. Just the substrate, aged filters, plants and decorations. That's where your good bacteria are. The old water is just... Old water. Start with 55 fresh gallons and some dechlor.

I also second the 'upsize with extreme prejudice' if at all possible. How long do you really think that 55 is going to satisfy? It's already pretty much full with the 59 fish you have. The whole point of going bigger was to be able to get more fish right?

Extreme prejudice???? Will I become an addict or do you see a can of worms???

Grasshopper is very convincing but selling a 90 to the management may be beyond my Jedi powers!

Upsize with prejudice??? Will I become addicted or do you see a can of worms?????

Guys;
Would there be no benefit from using the balanced water from the 30 as well as aging 25 more and than adding dechlor.

Do you see a downside to using the 30's H20??

I always age the water and declor....have NEVER had one problem with lots of scaleless species.

"I'm looking for no problems whatsoever."

Well, be prepared for some, even following Shawn's excellent instructions. Things happen.

Also, if you're a one tank family and you like a big-time community setup, up-size "with extreme prejudice." I know your almost doubling your original size with a 55g, but go big or go home. If your going 4 foot, go 90g. Sounds like you would have no problem filling it, ultimately.

Wow...59 fish in a 30!

No it doesn't change my opinion of how to make the change.

The 30 contains 59 fish. The royal pleco is 7". The clown loachs are 6" and 5".

Dose this change your opinion on how to do this?

I'm looking for no problems whatever. Time and effort are nothing if compared to possible problems of any kind.

The plecos are wild caught Amazon fish.

The blue Angels came right from Ken Kennedy.