Downgrade from 75 to 55

never done it, but it's definitley possible. What's your curent livestock?

Of course it is possible....but really silly to do....a 75G is a much better aquarium for SW fish....it gives them more swim space, and you more work space...why take it apart if you already have it going?

It is possible to make a switch with out killing fish. I though about it when I just went from a 55 to a 90, I was worried about losing fish with the transfer, but then after I though about how many other tanks my fish have been in before they hit my tank....... I knew they would fair well!

with those tangs you really need a bigger tank.....you need to find out the cause of the red slime....lights...food....water circulation....a lot of factors to look at.....fix the problem and you will not have a lot of xtra work to do

how are your phosphates????

how are your water parameters?   How long do you run your lights?

Flow?  Feeding? tap or ro/di?  filtration?    something has to be off for you to have issues....just need to pinpoint what it is

If you do the same with your new tank, you will be facing the same. Meowzer is right with get to the bottom of your problem. SW tanks really aren't hard if you get "problems" undercontrol. Once you get things flowing tanks maintain themselves! Believe me! My 24 is prime example..... I let it go for months at a time with out any maintence, and everything looks great. Our mini oceans will balance them selves if we get them there!

Quote:

Originally Posted by wayner 

Any pics of your 24?

A whole thread of her!!!!

http://forums.saltwaterfish.com/forum/thread/339068/jerth6932-s-tank-progress
 

Cheaper to keep what you got, and fix it as it is......... I would give it a shot since you have it already!

Quote:

Originally Posted by wayner 

Well I have a Clown, blue tang, blond naso, bullet goby, watchman goby, cleaner shrimp.

 

I just feel like I dont need such a big tank and I cant keep up on the maintenance. The only reason I got such a big tank was so I could house a banded shark for a while but I ended up not keeping it anyway.

 

Being I cant keep up on the maintenance I keep getting red slime on the sand bed.

2 tangs in a 75 never the less a 50? The tang police are gonna be after you!

How big is the blue tang, and the naso?

How long have you had them for?
 

Quote:

Originally Posted by wayner 

not sure I dont have a phosphrate tester. I really have a feeling it has to do with my lighting. I am just running a t8 cool blue bulb from walmart. I also want to get rid of my naso :-x He looks so white and has no color at all. I feed algae strips every day along with some mysis on most days. Im just frustrated!

Wayner my friend, that feeling you have right now, is the one we warned you of when you first started doing stuff your own way and not listening to us. What are you doing with two tangs in a 75g? First it was a shark egg, then a flounder, now tangs.....If you will finally follow some advice, you can still enjoy your tank and not give up....You can do this and have fun too. I understand you're a free thinker, but some things in life has to be a "follow the rules or it will fall apart"...SW tanks are in that catagory. Once you really understand the basics you can tweak things but you are not there yet.

 I almost live at Walmart and I have NEVER seen any lights for a saltwater tank. Just regular white fish lights for a 55g that would fit a 75g....but  What is a cool t8 bulb? If you don't have corals it really won't matter, fish don't care...I'm just wondering.

Cyanobacteria AKA red slime is as a rule are the result of Phosphates, overfeeding, and low flow ...99% of the time.

To get things back on track....I suggest that you:

1. Get rid of the fish not suited for a 75g (that's why the Naso looks so dull in color)

2. Get more rock..even dry base rock will seed..just make sure it's rock suited for saltwater tanks, so don't shop in your back yard. (last part is a joke)

3. Do weekly water changes with RO water for your salt mix, not tap. (this will get the water in good shape)

4. Get a phosphate test kit and post test result numbers not your declaration that all is perfect. (with red slime you will get a false negative, the red slime feeds on it)

5. Be very careful to not overfeed

6. Get a stick and attach a plastic thin string and move it around the tank, make sure you have enough water flow to all areas, no dead spots...you may need another power head or two

7. If you don't have a skimmer, it's time to get one...it will remove extra nutrients from the water.

Get this book

And here is a page so you can see the info it offers...

Pay close attention to minimum aquarium size and maximum length of the fish...there are some awesome fish I'm sure you will find for your 75g

I hope you hang in there, a smaller tank will just make things more difficult...the smaller the SW tank the harder to keep the water parameters right. Things can go bad fast. We are here for you and we just want to help.