Is there any way....

To start a fresh with your aquarium without killing what good fish/coral you do have left?

Nothing seems to be flourishing the way it once did in my tank, there seems to be an abundance of flatworm. I've have aptasia, which I believe to be eradicated now, I have just found mojano... My sand constantly seems to look dirty within the space of about 3days of siphoning out the dirty sand and replacing, I do have a sand sifting star fish but it doesn't seem to make a difference....

All my levels are fine so I really do not know what to do other than starting a fresh...

Any advice?

 

How large is the tank?
Red flatworms?
What types of filtration?
What type of sand?

For the aiptasia you could use peppermint shrimp. Flatworm treatment really depends on the type of flatworm. Sometimes getting a fish to eat them will do the trick.

You could go out and buy new dry base rock and cycle it in a container and change out your rock, but you'll be in the same place again if you do not eradicate the pest anemones and flatworms.

 

Thanks for the response!

The flat worm appears to be a grey colour... Varying in size though from very small to a good 4-5 inches if not bigger :-/

The tank is a Red Sea max 130d

The sand I believe is just the basic type of sand that you can buy from aquatics, it's very fine sand if that helps...

Sorry there's not a lot of help in that answer is there, we've only had the tank 6months and it was sprung on me only days after having a baby so wasn't really paying as much attention as I should have been until now :-/

 

Fine sand is more difficult to keep clean. You might want to look into some Narcissus snails. I am hesitant to recommend a pistol shrimp or goby because you will may have issue with water clarity since the sand is a fine grain.

Some wrasses and common damsels will eat flatworms but you have to encourage them by not feeding for a few days, and using a turkey baster to blow the flatworms off surfaces so the fish sees the worm and goes after it.

You could also try improving the flow to the tank to keep detritus from settling and then use mechanical filtration like floss or sponge to remove the suspended particles.

Routine water changes after blowing off the surfaces of rocks can also help to remove the detritus and replenish the trace elements for the corals as well as lower nitrate and phosphate levels if you use RO water.

If you want put up an image of the tank and the flatworms and perhaps we can offer more assistance.

 

+1 on everything the Coralline said. I would go back and look at all the basics and go from there. Are you using Ro/DI water? Do you have a sump? Is there adequate flow through the system? When you say your sand is "dirty" does that mean algae, dino bloom? A picture would help. 6 months is not all that long so it is still a very young tank. Once you get things dialed in and stable you will have learned a lot and will have a great tank!!! The first few months with my first tank was frustrating at times but well worth the effort and time i took to learn. Good luck and stick with it!