Good/Bad having carbon water in AP systems?

[poohbear]

I have some deco tanks that are being dosed with Seachem Excel (http://www.seachem.com/Products/product_pages/FlourishExcel.html) which is a carbon source. In deco tanks it has been used to help fight off algae and also aquarium plants tend to take to it and grow with the carbon from what I've been told.

Because I'm not doing a true AP system (I'm using my water change water poured into my hydroponics setup thus why I call my setup a 'semi-aquaponics' setup.), I've dosed the tanks with a few mL's of EXCEL to help fish off the algae instead of using a co2 setup or a DIY yeast co2 setup. I'm curious how EXCEL will work with aquaponics? I'm not seeing my cherry tomatos dying and EXCEL is safe with fish and my understanding is aquarium plants grow well with it so I'm thinking it'll work with AP systems for those in my situation using a 'semi-aquaponics' setup.

[arachdog]

It doesn't actually say anything about algae control on the site you listed. Are sure that's supposed to be one of its features? I don't see how that could work since its supposed to benefit plant life. Anyway I don't think it'll do your semi-aquaponics (might I suggest the term non-recirculating aquaponics) system any harm. However I'm not sure you going to get any benefit either. Its claims sound a bit suss to me, I don't think there is such a thing as a CO2 substitute for plants.