Octopus and clown fish help needed

Hey guys i have just set up my new salt tank, which im very happy with i got some live rock last week and have found all sorts of life on it shrimps, star fish, crabs a nudibranch to, so im ver excited.. anyway i got the rest of supplies 2 days ago ananame and coral and 2 blank and white clown fish yesterday (sunday) and later found out i also have an octupus hiding in the rock to, all ihave seen is 2 black and white tentacles but i think he is pretty big one, a tentacle came out about 2 inches long whilst trying to bait him out with prawn. That didnt work, i got told to try dousing him in fresh water and he may come out if not he would die, i tried that whilst scared to death of me other little creatures dying, he didnt come out. anyway he has disappeared but i saw a squirt has come out from a rock, which i know is from him and im stuck as what to do, te aquarium has said they will swop the rock but i dont realy want to loose the life i have on it and my nudibranch, anyone have any ideas please....

plus since i added the clown fish they dont seem to be wandering very far in the tank and havent found the ananame yet, they seem to venture a little more at night than during the day is this normal to hang in one area ot is it becasue they are stressed

REply to Archer772 and Judgemax...ok new lingo for me..water parameters..?? its a 50 ltr tank and i have tested all water for ammonia etc if that wat u mean and it fine, tempreture at 26/27 i set the main tank up over a month ago and have left it to run it natural process and had waters cheked each time,, added live rock about week and half ago found little criters etc, i woke up one morning and turned lights on on the tank and something was on the rock which disappeared rapidly, and everynow and again i see like a spurt of water and slime/debirs come from within the rock, anyway it happ yesterday and thats where i saw the 2 black and white tentacles come from which making me to believe it an octopus, when i baited it with prawn it reached out pretty far to grab it, im not sure if star fish can do that but they are heaps of species so dont quite me on it..so my conclusion is an octopus..but could be very wrong.. i havent spottd any shells but im kinda worried about him eating my fish if it is... please excuse my typing

wow that kinda freaky to say the least, yes the tentacles do look like that and come to think of it there was a very small mini brittle starfish in the bucket i had another rock in, this morning, so yes it a possibility. so what could be doing the squirting everynow and again the starfish??, and does it ever come out of the hole? sry so many question..just trying to figure out what it is and would these reach up to grab a prawn haha b great pictures by the way

OK the tank is An AquaOne 500, 50ltrs...i had the saltwater process runing for about a month beofrei added the live rock in about 2 wks ago. i have 2 filters, an undergravel filter which came with the tank and which has about a 1/2 cm cover of crushed coral plus a fluval filter to..the tests to date bearing in mind the upset of the tank the last few days with a poss octupus and having to take the rock out are Ph 7.8 which is low..Ammonia 0.50 which is just over... Saltwater nitrate No3 is in between 10 and 20 and the No2 is 1.0 so they are all out today...so far in the tank live rock which was added near 2 weeks ago and then this weekend anemone, a brain and some coral plus 2 black and white clown fish.- (i thought i should wait for the fish but was told it was ok)..who seem to be having a ball since yesterday and are loving the anemone..anyway your input is appreciated the aquriam i deal with have been reguarly helping with advice and checking my water levels to before anything else was added but yes please help, i ahve had tanks before but this is my first SW.. future plans poss another pair of clowns and some bottom dweeling fish.i obviously need a cleaning crew not sure what to get tho...any ideas sorry to sound like a newb hehe

Grins said:

It sounds like you're moving really fast on this tank and that is a bit worrisome. If you're interested in getting some help with moving forward as well as what has already been giving in identifying the starfish, could you list the species you've bought for the tank (looks like you might even have an anemone?), your tank specs (equipment), test results (actual numbers) and your plans for the tank?

Oh and welcome to AC!

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