I find the statement "my tank never looked better and then I started zeo" very interesting. Why use zeo if your tank was looking good? I was going to give zeo a try but I just can't justify the cost nor the commitment required to do it. If any mistakes are made with zeo..... lights out so to speak. I'm not in for that.

I'm going to be in Calgary over the weekend.

If anyone wants to meet up over lunch for a ZEO instructional, I'd be happy to share.

Not a bad idea.

I would try to get in on that (depending on where/when I guess!!) :) :) :)

Zeo is what really kicked my tank into high gear, when I started zeo I saw a lot of good changes, better water quality and colour/growth.

I have been very strict about my dosing regiment and change 5% water weekly with RBS (zeo guide recommends 10% with other salts)

I am running a euro reef rs135, it is a decent skimmer allthough I wish I had a bubble king, but for the price this skimmer works well.

Greg,
are you using RO water? If not the spring run off time is really bad for extra chemicals in the water our reefs don't like. I am having a similar battle as I neglected to change my RO filters soon enough.

Snappy, great point. I'll need to test my RO and see if the TDS have increased. I haven't changed the filters in a while.

I can't get those stupid quick connects apart without breaking them so changing filters means I need to replace half the fittings on my filter.

Personally I think your skimmer is your problem, I really don't think a ER 135 is big enough for a 90 gallon + sump system when using Zeovit. Although it may be a good skimmer for the price it just simply will not do what you're expecting it to. Basically you're flooding your tank with bacteria and bacteria food to eliminate nutrients but there are harmful byproducts that need to be skimmed out. It seems fairly obvious to me that skimming has not been effective and these byproducts along with excess bacteria and b-food has resulting in a cyano outbreak.

Although the guide does state that 5% weekly is fine when using RBS it also states this would be for the purpose of only replacing elements. In your case you should change more water to help remove byproducts and excess bacteria and nutrients not removed by your skimmer.

Wouldn't make much sense to use tap water and zeovit, kind of like putting regular gas in a Ferrari :biggrin:

I use only RO/DI, but I have not made up any fresh in a couple weeks as I have a 60G rain barrel that is now about half empty. I might find a higher TDS as I make more water later this week.