am i clam ready

[illnino]

i have a 29 gallon tank with a 10g refug/sump. the tank has been setup for 4 months and the rock is from an established tank that is 6 months. i have a 1" sandbed, coarser sand. my lighting is 240w pc. am i ready for a deresa or croceca(sp?) clam??

 

[perky]

croceas need lots of light to survive. 250w 14k metal halide minimum for croceas.

perky

 

[HOZERTHEBONEFISH]

Do you have lots coraline on glass and rocks? I assume your paremeters(alk,cal ph nitrate nitrite) are ok. If so you could probably keep derasas. Croceas will not do well in your sys IMO

 

[illnino]

there has been a bloom of coralline on my rocks. none on my glass yet as my tank is only 4 months old. my paremeters are all great. cal is 400-420 range, ph is 8.3, nitrate and nitrite are 0

 

[grimmjohn]

croceas need lots of light to survive. 250w 14k metal halide minimum for croceas.
perky

Thats a nice system, but is not a minimum; clams also do not need a specific spectrum...if anything a crocea would "need" like 6.7K, right?
I think more people would say 150-175W MH as a min., We've rejected 130W PC on this forum for a while, but 240W PC is getting into where I don't think anyone could flat out say that it will not work.

Cheers,

grimmjohn

 

[illnino]

ok, im running two 65 and two 55w bulbs. one of each is 20,000k and one of each is 10,000k so that puts me at 15,000k. will a deresa clam do good with this??