This is my first post here, so here's a big shout out to everyone. I have needed help for quite some time with my 65 gallon reef and I finally found this forum so here goes:
1. I've been through 4 skimmers with this tank

ETS Reef Devil first that I actually liked but it required a huge pump to run well and then I dropped and broke it. Then a Turbofloater 1000. It just never gave me any skimmate. Then a Coralife 125 SS. It would run well for a week and then overflow and dump a few gallons of water on the floor.
Now I've had the Euro-Reef RS80 and it's certainly the best of the bunch. Very quiet, no bubbles in the tank and it's easy to adjust and clean. If anyone has this skimmer or similar can you tell me the water/bubble level for best efficiency?
2. I know that I need more flow. I've got a weak Eheim to recirculate from the sump (got a new one just need to replumb). I know that the new Eheim will help. There are two maxi jet 450 PH's to help with flow in the tank. They don't do much and I'm contantly repositioning them as the suction cups break loose. After the new Eheim is in I'd like to add new PH's. I like the look of the new Tunze 6025. Does anyone know if these are good or have a suggestion?
3. I'm intested in a deeper sand bed. I have just about a half inch of live sand, but it's now bare in many places. Every water change (8 gallons 1xweekly) I have to vacuum the sand and loose some in the process. Any reason that I can't have a 3-4 inch sand bed?
4. Ball bearing algae!!

Don't know the scientific name but this is my nemesis. I've carefully removed it and tried adding emerald crabs, but I'm loosing this battle. Please help.
5. I feed my four fish and one cleaner shrimp every other day. Is that about right?
6. I bought some
pumping Xenia about a year ago. I now covers a third of the tank. It does look cool and carries a big wow factor for visitors. But I've lost some softies to it. What the best way to keep it under control?
The tank has been set up for about two years. There are about a dozen
soft corals in the tank and 75 lbs. of live rock. Coralife PC for lighting . 65 gallons.
Sorry to go on and on but I've had a lot of questions.
Thanks in advance for the replies...