Two spot goby questions

Hey I am wondering how hard these things are to keep. I have heard that they will sift them selfs to death, just wondering if this is true.

I have a 60 gal reef tank, with a perc clown, goby yellow clown, and a wrasse that looks kind of like a carpertenter wrasse. And a sand bed of about 1 and a half inch. Tank has been up for two months.

 

I made the mistake a few years ago getting a pair of these fish when my tank was fairly new. They do sift sand but do not seem to take prepared foods too often so if your tank is on the new side, most likely they will starve due to lack of food like mine did.

More Info:

Fish Best Left For Experienced Or Knowledgable Hobbyists:
(finicky nature, parasite prone, specialty feeders, require specialty tanks, or threatened species)

Anthias (require a good amount of swimming room, peaceful tankmates, and frequent feedings, often unhealthy and starving by the time they make it to dealers tanks, some almost require special tanks with their needs in mind)
Twinspot Anthias (one of the more difficult standouts of the Anthias)
Square Anthias (collection methods, stress, and starvation after collection seem to be especially problematic here)

Platax tiera (can very hardy once acclimated but there can be problems feeding, they stress easily, and are disease prone)

Regal Angelfish (Red Sea Specimens tend to be hardier and more willing to accept prepared foods and the more recent trend to keep this fish in reef aquariums helps with survivability)
Bicolor Angelfish (concerns with drugs used in collection and frequent unwillingness to accept prepared foods)
Genicanthus sp. angelfish (hardy once acclimated, but lots of problem specimens due to the depths they are collected at, take extra special care in examining and observing them before purchase)

Garibaldi (cold water species and protected)

Trunkfish [Boxfish and Cowfish] (most are rather sensitive and can release toxins when stresed or dying)

Clown and Gumdrop gobies (poor shipper, once established a good surviver with less boisterous fish)
Catalina gobies (coldwater species that will not do well longterm in tropical temps)
Mandarin Dragonettte (requires large amounts of live food typically which can be provided naturally in 50+ gal. tanks with a good amount of live rock, will only rarely accept prepared foods)

Radiata Lionfish
Fu manchu Lionfish (All the dwarf Lions require tanks with their needs in mind, the later two are also very sensitive, very shy, and poor shippers)
Dwarf Zebra Lionfish

Anglerfish (most get very large and can consume fish nearly their own size)

Acanthurus sp. tangs (ich prone and fairly sensitive to water conditions, Achilles, Powder Blue, Powder Brown, and Goldrim can be rather difficult and beginners should be especially leary)

Ctenochaetus tangs (ich prone, some of the hardier tangs once established, the Chevron is probably the least hardy of the genus)

All Butterflyfish (except Vagabond, Longnose, Heniochus, Golden, Pebbled, Klein's, Lemon, Auriga, and Racoon, which need large tanks)

Seahorses (need quiet species tanks and large quantities of nutritious live food)
Seadragons (very rare and I'm unaware of any longterm success)
Pipefish (see Seahorses)

Longnose Hawkfish (hardy fish but they are notorious jumpers and be careful with ornamental shrimp with all Hawkfish)

Porcupine Pufferfish (can be hardy but also seem very disease prone)

Fairy wrasses [Paracheilinus and Cirrilabrus sp.] (require peaceful tanks and do best in reef aquariums, they stress easily and the first few weeks in captivity will often make or break their longevity)

Leopard Blenny [Exallias brevis] (specialized coral feeders)
Scooter Blenny (see Mandarin Dragonettes)
Lawnmower Blenny (will sometimes not accept prepared foods and will starve to death in tanks without a natural algae food source)

Sandhopper

Sleeper Gobys (Valenciennea sp.) (sometimes starve to death even when accepting prepared foods, tanks with large sandbeds containing lots of food will help as will frequent feedings when they will eat, mated pairs may help as well)
Rainford's Goby (often will not accept prepared foods, need established tanks with peaceful fish a sandbed full of life)
Twinspot Goby (combine the suggestions above for this one)

Cephalopods (not fish, but including them here because of their intelligence compared to the dumb lumps of goo that are most invertebrates, the Nautilus from above is in this group as well)
Octopi (must have species tanks, lots of swimming room, and should probably be on the above list)
Cuttlefish (similar care to Octopi, but slightly higher success rates)
Squid