No growth

[rustyjames]

I have 3 types of zoas, one bought in april, one may and one june. The first one I got has a few babies but zero growth on the other two. Tank was set up in january, run t5 lighting and drip kalk. Params last night; temp 78, sg 1.025, cal 420, dKh 9.6, mag 1325. How do I stimulate some growth? I know the tank is young still but the zoas have good color and open wide every day. Just wondering if I'm missed something? Thanks.

 

[650-IS350]

pics?

some polyps just takes time.. I had some PPE's that NEVER budded new polyps while some other PPE's grew 1 or 2.

Tank is new, but shouldn't be cycling anymore? what are you pH/Alk/Salinity ? Nitrate/nitrite/ammonia/phos at ?

 

[rustyjames]

I don't have my camera with me right now. ph 8.4, nitrite- nitrate-ammonia all 0 according to my api tests, don't have phosphate test but run phospure, no algae problems to speak of. The zoas with no growth are fire and ice and unknown name but really bright orange (bam bam?).

 

[650-IS350]

Those are pretty fast growers IMO and with my tanks but each case is different. What lighting do you have by chance ? PC's ?

 

[rustyjames]

Nova extreme t5.

 

[650-IS350]

w/ individual reflectors or the one with 1 main reflector?

 

[rustyjames]

1 reflector bent around each bulb. I guess you're thinking insufficent light? Tank is a 30 long with 2 x 39 watt t5.

 

[650-IS350]

Maybe for a 30gal with 2 T5s. Good for keeping them but don't know if that's enough light to encourage strong growth as these are light loving corals which get most if not all their food using light. I run 4 T5s in my 20 tall and used to run 8 on my 100.