So, let the pics talk about them selves, but first my parameters
pH: 8.
Kh: 12.
Ca: 300.
Mg: 1150.
Sg: 1.020-1.022.
Tº: 26-28 Celsius.
NO2: 0ppm
NO3 < 0-1.0 ppm
PO4 < 1.0 ppm
Light:
2 T5 14W Actinic.
2 T5 14W 6500kº
"4800 Lumen
Filtration & Circulation:
1 Aqua Jet 40 (Filter 1400l/h).
1 Sunny SPH (1200l/h).
1 Resun EF-800 (Filter 800l/h).
Water warming:
1 Sunny SGH-329 100W.
Now the pics! i just took them with my cellphone so, excuse the quality

Chaetomorpha Crassa, the thinnest chaeto i found result in the best for the main macro algae mass it does not need a strongest water flow like other chaetos i know because i´ve also tried with 2 bulkier species but it died un about 2 or 3 weeks, so for my experience, the thinnest the better...
i also had a bad experience with skimmer at macro algae tanks, it seems these two guys do not get along, skimmer steals all the nutrients that macro algae needs, so it starts to die and another kind of algae, like green hair or brown glass blooms... so i removed the skimmer... and macro feels blessed growing every day

This is an "actinic" tank view, as we studied, lighting is 24/7 to avoid unwanted situations (like sexual reproduction and disintegration

And this is the "day" view of the tank, it is composed by 2 T5 14w 6.5000kº that works 13hors (from 8am- to 9pm).
And the puffers!!!

Here is my puffernand, the smaller T. Nigroviridis (used to be the bigger a month ago).
He loves the macro, he swims all over aroun and in the macro mass...

And here is the big one, puffergie, who grow up a lot, she does not seem attracted by the macro but loves to eat some little white bugs that live un the macro (i don't know what are they and where they came from).
So, this is all for today...
What do you think of it?
By the way, since weather got warmer (28º day - 26º night) puffers seem to be hungry all the time
is this normal?, i mean, they eat all they can (get fat) and the next day in the evening they already sh÷#t and their bellies are thin again...