Are the overfollow boxs, a hang on filter?,
No Im afraid they are not.
An overlfow box is a box which creates a syphon to flow water into the sump.
There is a link in one o f the other posts in the marine section, Iwill see if i can find it and post it here too.
In the sump with the heater, wat else would i need? air pump
In the sump i have the following. Heater (switchedd off as the tank is already running hot) and the return pump.
The miracle mud (Mineral Mud in my case) and various forms of Macro algeas for nutrient export. I also have a small collection of Mangroves for Nutrient export.
There is no need for an air pump as it is more important to get gas exchange with water movment rather than air bubbles.
And do you have a cleaner crew?,
Yes i have cleaner crew. Not enough at the moment to be honest but i buy a batch every month to catch up as I have beena bit lazy in building their numbers up.
I would recomend that you have at least 1 crew per gallon of water. Sounds alot but its really worth it. This doesnt mean you have to buy the lot right away, what i suggest people do is each time they go to their lfs and make a purchase then add a single snail or hermit to the list. So if you go and get food, add a snail... buy a fish then get a hermit etc.. this way the price is spread out and doesnt feel as painful
I have the following:
2 Sand sifting stars (you only want 1 for a tank your size)
10x redleg hermits
30x Bluelegs
3x Cleaner shrimps
3 Blood Shrimps
20 Cerith Snails
20 IO Snails
10 Astrea Snails
I think one is a boxer shrimp, my LFS has them
I wouldnt recomend a boxer for beginners. Not that they are difficult to care for (quite the opposite in fact). But they can and will kill your cleaner/blood shrimps etc. They are very adept at cornering small fish or shrimps and killing them
Unfortunately most lfs dont tell newcomers this and they are purchased in innocence.
Im sure that many will reply now saying that they keep boxers in their tanks with no trouble but I personally wont take the risk (even in 100 gallons) Shame though because they are possibly my most favorite shrimp!
)
With the sand, i live on the beach, so can i use sand from there?, or u wouldn't recommend it.
Now this is something i really dont feel confident in advising on. As you are aware by now i run my system as naturally as possible. I did look into collecting sand from the areas around where i live but the sand would serve no purpoe other than looks as it doesnt have the calium buffers in it from the coral reefs. Therefore I got the proper sand as this does more than just look pretty in the tank. It also help keep the PH stable which is important in a marine setup.
However, I am not sure what the sand is like in your area of Australia. Your watters are far better suited for reef fish than mine and perhaps its ok to use this sand. However, it would still be nervous as sand can act like a sponge and keep all sorts of unwanted toxins deep within. (Loads of Oil tankers have sunk off our coast and the sand in some areas around my coast is extremly high in Nitrates and phosphates if you dig down just a couple of feet.)
I would personally do alot of research before using sand locally. Even then I would probably feel safer using "prepared sand" from a shop, atleast you can be sure its not going to give you problems.
think i own you a carton of beer lol
Spoken like a true Australian!
I wish i didnt live so far away now!