Kessil AP700 acclimation

[Eric Boyko]

I recently set up my new display for mostly SPS, cycled it and burned off my first diatom bloom, and looking to begin moving corals. I created 4 separate lighting intensities to try acclimate my corals from the cheap black box to the more powerful Kessil over 1-2 months. The week one maxes at a par of 50-125 and the normal runs 160-300. And thoughts or opinions are greatly appreciated

 

[Crabs McJones]

I recently set up my new display for mostly SPS, cycled it and burned off my first diatom bloom, and looking to begin moving corals. I created 4 separate lighting intensities to try acclimate my corals from the cheap black box to the more powerful Kessil over 1-2 months. The week one maxes at a par of 50-125 and the normal runs 160-300. And thoughts or opinions are greatly appreciated

Looks good The light also has an acclimation mode that you can run so you only have one schedule and after a set amount of days it'll automatically go to your full schedule after the acclimation period but if this works I say go with it. I would however lower your jumps a little bit 20% over 1 week is a pretty large jump. I wouldn't do anymore then 10% a week

 

[Letsarrange1]

Hey man, you’re moving way too fast imo. I went to 40% on week 2 and ruined a lot of things.

Start it at 25% and go up 5% a week.
I lost about 3k worth of stuff.

I’m about 6” above waterline

 

[bif24701]

Hey man, you’re moving way too fast imo. I went to 40% on week 2 and ruined a lot of things.

Start it at 25% and go up 5% a week.
I lost about 3k worth of stuff.

I’m about 6” above waterline

I agree.

OP,
Start at 35% peak ~6 hours and increase peak % by 5 every 7 days. Do this until you reach 50%. After 50% if you feel you still need more light then increases should be longer and smaller. 2-3% every 7-10 days over 50% until you reach 70%. There is almost no reason to go beyond 70% unless your light is hung very very high or very very deep tank.

This process should take 3 months or more! Do not rush things.

Most important, do not starve the corals! Keeping ULNS will almost certainly end with bleached corals. Normal ~1-3ppm NO3 and ~ .01-.03 PO4 is a minimum.

If you see that corals are losing color do not tune down the lights right away. Stop increases for another 7-21 days and see if it gets better. Also make sure you are not starving the corals. You can increase again when color starts to return. Patience! If you have to turn down the lights last resort then you are probably at the MAX PAR for your system.

Most find 50-70% sufficient without any supplement lighting. If you are running additional lights you may need a lower %.

This light is powerful. It will easily fill an entire tank down to the Sand bed with very high PAR numbers.

It’s better to go slow because once a Coral is bleached it will stunt any growth and could take months to recover.

 

[Makers Marc]

This needs to be discussed more. Maybe its on page 127 of the 187 page kessil thread. But I do know if you just throw many acros under 70% or more immediately, after coming from t5 or even other LEDs with high Par.

There's something searing about it.