Looking to get a beginner CO2 regulator that doesn't break the bank (can't really afford two-stage) as I want to introduce CO2 to my planted tank. I was thinking the Aquatek Mini that seems decently popular, but the price is about $130 CAD all in to get it here, and well, it doesn't look very...

So I have an Apogee MQ-200 Par meter. I've build a stand for mounting LEDS to it and testing them at different heights. I can measure from 0" to 30". I was thinking of taking measurements at 6", 12" 18" 24" & possibly 30" depending if people think that height is needed. I was thinking of...

Has anyone used any of the HK/china aquarium heaters? you can get a 100w for 10$.. but are they any good? has anyone tried one?

So I got the order for what were called Mud crabs in today. I actually got sent 1 extra so I have 5 instead of 4 which is a nice surprise. Taking pictures later tonight.

I was looking on ebay and found a seller by the name of Mr. Bullfrogs Aquatic Critters. Do you think they are good? Have you had experience with them?