I mean no offense here - honesty comes first...
This is a common problem with new keepers. It stems from lackluster caging/enclosures/husbandry, and a lackluster diet.
When you don't offer a proper diet and instead feed things like meat, eggs and gizzards - the monitor can't calcify bones properly which leads to weak bones that break easily. That is just the beginning, eventually leads to death.
STOP feeding gizzards, meat and hard boiled eggs. They don't need any of that junk. ESPECIALLY if he's being kept in a fish tank (worst monitor cage ever).
These animals need WHOLE PREY items and proper caging/husbandry.
Why buy a potential 7ft lizard without knowing what's coming?
Seems like common sense to do your homework for a long while before purchasing a 7ft carnivorous lizard.
You can save him but you need to get to work before it's too late.
- Build him a proper enclosure. Yes, build, as that is the only way to properly house a monitor. Buying fish tanks/vision cages don't come close to cutting it.
- Throw away that fish tank.
- Get a temp gun. Measure your surface temps. Basking hottest spot should be around 130f.
- Feed a proper diet. Never feed plain meat, gizzards, eggs. Whole prey only meaning EVERYTHING - feathers, fur, eyeballs, organs, bones etc = the WHOLE animal. For your Albig you should offer baby quail, chick, fresh crustaceans (crawfish, crabs, etc), and roaches.
- Ditch the crickets. Their phosphorous/calcium ratio isn't optimal even if gutloaded. Not to mention - if you are buying crickets from the pet store - the crickets are most probably on the cheapest/worst diet the pet store can think of probably feeding them potatoes only.
- Breed your own roaches! Get yourself a Tupperware container and throw some egg cartons inside. Buy about 500-1000 lobster roaches (lobster roaches have a high meat/shell ratio) and throw them in. Set the container on top of your newly built enclosure where it's warm from the light inside and there is your heat source for the roach container.
Lobster roaches breed very fast if kept properly and they make great feeders.
Don't feed them crap. Feed them fruits and veggies (don't even need to give them water as they get it from the fruits/veggies) every day and you'll have yourself a very healthy (and free) roach colony going in no time to feed your black throat.
Get started...
Good luck!