I hate my tank!

[whatcaneyedo]

Your phosphate, nitrate and calcium scare me. At those levels of NO3 and PO4 I'm not at all surprised that you have algae and slime problems. I am surprised that you dont have calcium precipitation.

Marine Invertebrates: 500 Essential.... By R. Shimek provides some excellent insight on keeping snails and The Reef Aquarium Vol 3 by Delbeek and Sprung is the best book I've read on aquarium chemistry and setup. Or spend some time reading through www.reefkeeping.com and www.advancedaquarist.com (two online magazines) for some detailed direction on how to get you system healthier.

+1 for larger weekly water changes.

[Boomboy]

looks like you got alot of help. no such thing as a bad question. i hope things to out for you, i understand what your going through with the cyano, i had it but with corals. work hard at it, maybe invest in a ro/di unit you wont look back. hope everything turns out well.

[Snaz]

Originally Posted by jslaney

-Water top ups performed using tap water that is let out for a minimum of 24 hrs.
- I have changed 20 % of the water twice since beginning
Sincerely,Jon

Letting the water stand for 24HR will only remove chlorine. The copper in the water could be killing your snails and other inverts ie. pods. Other suspended particles in your tapwater will fuel the cyano outbreak. Good water is the BASE of every reef tank. Get a DI/RO until ASAP!

You should be doing more regular water changes, 20% in three months will not replenish the trace elements your tank needs.