NEED HELP STAT!

Do you guys enjoy looking at bubble algae and aiptasia in your tanks? NO?! Well I don't enjoy seeing it on my website either LOL!!! Be creative and upload an avatar AND a profile pic! KTHXBAI

You can do this by clicking "Messages" at the top and go down on the left-hand sidebar to "edit avatar" and "edit profile picture" and tada! No more bubble algae

Hi ,
I am up to purchase New Phosphate (PO4) and Nitrate (NO3) test kit.

I got three kind of product on line:

Hanna:
Hanna Pocket Photometer Phosphate
Hanna Phosphate Photometer Low Range
Hanna Checker Nitrite Ultra Low Range

Elso:
Elos Phosphate Kit.
Elos Nitrate (NO3) Kit.

LaMotte:
LaMotte Low Range Nitrate Test Kit
LaMotte Phosphate Test Kit.

Which one do you recommend me to buy ...

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This has been going on now for like a month. My tank is a 140 shallow reef tank with T5's. I have two 6100 tunzes for water movement. Run the lights from 4:30 to 11:30. I have a total water volume of 260. I have two 30 gallon breeder tanks plumbed into for sps frag tanks. These are full of water but no corals in them at this moment.
Water parameters are as follows
ph 8.4
Ca 380
Alk 8
NO3 15
NO2 0
NH3 0
temps. swing .3 degrees of 77 ...

In the past 6 months my tank has been going through a slow death. All normal parameters are normal so it's been very puzzling. The only thing left to do that I hope will resolve this is to take everything out of the sump (fuge, rubble, etc.) and give it a good cleaning and leave it bare afterwards. I have had RTN, STN, Polyp bale out, etc and am at a complete loss. I have lost many of my favorites with over 30 colonies and countless small pieces gone so I am not a happy camper in regards to my reef ...